On October 19 new child mortality estimates were released with two additional indicators: Probability of dying at age 5-14 years (per 1,000 children age 5) and Number of deaths ages 5-14 years.

A minor update was processed on December 28 to revise historical data for Doing Business indicators for Bangladesh, Brazil, China, India, Indonesia, Japan, Mexico, Nigeria, Pakistan, Russian Federation, and United States, and related aggregates.  

A minor update was processed on December 21 to correct government finance data (including military spending as a percentage of central government expenditure) for Japan and Spain, debt data for China, and related aggregate calculations for these sets of indicators.

The release on December 16 features new external debt data from the International Debt Statistics database, and revised data for national accounts, PPP series, balance of payments, FDI inflows, remittances, and monetary indicators. Updates have also been made for government finance indicators, malnutrition series, education aggregates, Enterprise Surveys, commercial banks, refugees, high-technology exports, and other trade-related indicators. IDA and IBRD group data have been adjusted to reflect Syrian Arab Republic's reclassification as an IDA only country.

World Development Indicators: November 2016

 
On November 17 data have been updated for Doing Business indicators, and series related to fertilizer consumption, ambient PM2.5 air pollution, population in largest city, and population in urban agglomerations of more than 1 million. World aggregate data for greenhouse gases series, surface area, and land area have been revised. Monetary data for Cyprus from 2001 to 2004, and market capitalization data for Slovak Republic from 1993 to 2006, were also corrected. Purchasing power parity data for Argentina have been restored and updated.

World Development Indicators: October 2016

On October 14 an update was processed for national poverty and child mortality series, and to add 2016 data for Enterprise Surveys and women in parliament and 2014 data for freshwater resources and withdrawals. 2015 world values in U.S. dollars for gross capital formation, gross domestic savings, gross fixed capital formation, gross savings, and household final consumption expenditure were removed; they were misleading because there are no 2015 data available yet for China and India and implicitly gap-filled aggregate values did not properly reflect expected trends.

On October 4 data have been updated for international poverty and shared prosperity indicators, balance of payments series, monetary indicators, Enterprise Surveys, FDI and portfolio equity flows, remittances, and indicators for education, health expenditure, HIV, immunization, CO2 emissions, statistical capacity, telecommunications, threatened species, private participation in infrastructure, research and development, intentional homicides, and battle -related deaths. New indicators have been added for HIV, gender, and educational attainment. Argentina, which was temporarily unclassified in July 2016 pending release of revised national accounts statistics, is classified as upper middle income for FY17 based on alternative conversion factors. OECD group data have been updated to reflect the addition of Latvia.

World Development Indicators: August 2016

On August 10 an update was processed for all monetary series, including corrections for reserves including gold and domestic credit to the private sector by banks, for 2015 and recent historical years. Other corrections were made for gross fixed capital formation in constant local currency, U.S. dollars, and growth rate for Ukraine for 2013 and 2014; listed domestic companies for the United States in 1983; and high-technology exports for Hong Kong SAR, China for 2014 and 2015. Related aggregate data were also revised. World values for gross savings as a percentage of GDP and GNI in 2015 were removed due to insufficient availability of country-level data.

World Development Indicators: July 2016

On July 22 an update was processed to revise Zambia's GDP growth rates and related national accounts and PPP data from 2011 to 2015.

On July 19 an update was processed to correct balance of payments data that were misaligned by one year for all countries and aggregates, and to add correct balance of payments data for 2015. Liberia's monetary data for 2015, and related aggregate calculations for low income, IDA, and HIPC countries, and Russian Federation's net transfers from abroad from 2007 to 2014, were also corrected.

On July 8 an update was processed to correct the scale of national accounts GDP expenditure and value added components for Iceland, Ireland, Japan, Switzerland, and United States from 2010 to 2015; constant price GNI and GNI per capita (including PPP), GNI growth rates, and current price net income from abroad for United States from 2013 to 2015; constant price GDP and GDP per capita, GDP growth rates, Atlas method GNI per capita, GDP deflator, and inflation for Isle of Man for years before 2010; and all aggregate calculations for these sets of national accounts indicators.

2015 data (plus revised historical data, where necessary) for all countries and groups for population-, GDP- and GNI-related indicators have been released on July 5. Other data that have been updated include balance of payments, monetary indicators, CPIA indicators, military expenditure, merchandise trade, and foreign direct investment. Constant US dollar national accounts series are now based in 2010 prices. Country classification hierarchies and group aggregate data reflect new fiscal year 2017 income classifications. (Note: Argentina, which was classified as high income in FY16, is temporarily unclassified pending the expected release of revised national accounts statistics.) Aggregate groups based on IBRD and IDA lending categories have also been introduced, along with groups for pre-, early-, late-, and post-demographic dividend countries. The two high-income-specific groups for OECD and nonOECD countries have been removed. 

World Development Indicators: June 2016

A minor update was processed on June 14 to correct 2015 statistical capacity indicator data for Brazil; military expenditure data from 1988 to 1993 for the Democratic Republic of Congo; and related aggregate calculations for these two sets of indicators. Data for forestry and air traffic indicators have also been updated.

A minor update was processed on June 1 to correct 1994 poverty data for Philippines; and 2012 births attended by skilled health staff data for Republic of Congo, Tanzania, and related aggregate groups. Other corrections were made to Angola's DEC alternative conversion factor and related national accounts data for 1985 to 1997; Oman's data for GNI and net income from abroad from 2008 to 2014; and 2005 historical PPP conversion factors (those with ".05" extensions) to express them in the latest local currency units for Latvia (euros), Liberia (US$), and Lithuania (euros). Data for high-technology exports and migrants have also been updated.

2016 Little Data Book

The table for United Kingdom (page 218) contains a partial set of data. Click here for the complete table.

2016 World Development Indicators Book

Figure 14c map (page 31) is missing green shading denoting the human footprint. Click here for the corrected figure.

World Development Indicators: May 2016

A minor update was processed on May 10 to correct stock market index data for 2015 for France, Germany, and the United Kingdom, world surface area for 2015, and international migrant stock as a percentage of the population for Northern Mariana Islands for 2010. Missing data for net FDI outflows and the consumer price index have also been added.

A minor update was processed on May 2 to revise and update national poverty, adjusted savings, and aggregate forest indicators. Missing data for value added shares for United Arab Emirates have also been added.

World Development Indicators: April 2016

Full update of development data to coincide with publication of the World Development Indicators 2016 book. New indicators include those for urban and rural land area, greenhouse gas emissions, fisheries, financial inclusion, education, health, and gender. Government finance data are now based on the 2014 GFS Manual.

World Development Indicators: February 2016

Data have been updated for grants indicators and forestry indicators. External debt data for Malaysia, Romania, and aggregate groups have been revised. Corrections have been made to international poverty data for Peru for 1985; GDP-related data for New Zealand from 2012-15; the PPP price level ratio for Myanmar for 2011; value added data for The Gambia and Lesotho; the consumer price index and inflation rates for Sierra Leone from 2006 to 2014; and data for other greenhouse gases from 1970 to 2010. National poverty data for Dominican Republic for 2014 have been removed pending further review.

World Development Indicators: December 2015

This release features new external debt data from the International Debt Statistics database, and revised national accounts, PPP series, monetary indicators, FDI inflows, and remittances. Stock market data, which had been discontinued from Standard & Poor’s, have been re-sourced and updated to 2014 from the World Federation of Exchanges. Updates have also been made for demographic and labor series, science and technology indicators, refugees, Enterprise Surveys, financial access and soundness indicators, entrepreneurship, homicides, tuberculosis series, and railways.

On December 22 data have been updated for malnutrition, national poverty indicators, and threatened species. Revisions and corrections include CO2 data for Democratic Republic of Korea, FDI data for United Arab Emirates, and population-related data (including GNI per capita) for Croatia and Maldives.

On December 29 national accounts data for Eritrea from 2012 to 2014 have been removed pending further review. Data for series derived from the national accounts indicators, including PPP conversion factors, have also been removed.

World Development Indicators: November 2015

Data have been released for maternal mortality indicators as published in "Trends in Maternal Mortality: 1990 to 2015" in joint coordination with WHO, UNICEF, UNFPA, World Bank Group and the United Nations Population Division. Updates have also been made for Doing Business indicators, poverty and shared prosperity, employment by sector, and women in parliament.

World Development Indicators: October 2015

Poverty, shared prosperity, and income distribution data have been updated and revised on October 9 to now be based on 2011 PPP data. International poverty lines are expressed as $1.90 per day (from the previous line of $1.25 based on 2005 PPP) and $3.10 per day (from $2.00). Please note some countries continue to use the 2005-based estimates, as well as the 2005-based survey mean consumption or income per capita series for shared prosperity; see database notes. Data have also been updated for statistical capacity indicators, surface area, land area and related indicators, including population density, and social protection indicators. Corrections have been made to national accounts data for Guinea and Sierra Leone.

World Development Indicators: September 2015

Data have been updated on September 18 for malnutrition-related indicators, population-related indicators (including per capita series, such as GNI per capita and GDP per capita), balance of payments, monetary indicators, immunization, HIV-related indicators, and PM 2.5 air pollution. National accounts data for Liberia have been corrected, with local currency values now reported in U.S. dollars. On September 9, child mortality data, including estimates for 2015, were released in coordination with the United Nations Inter-agency Group for Child Mortality Estimation. Other updates included those for access to an improved water source, access to improved sanitation facilities, and education aggregates.

World Development Indicators: July 2015

2014 data (plus revised historical data, where necessary) for all countries and groups for population-, GDP- and GNI-related indicators have been released. Other data that have been updated include balance of payments, monetary indicators, CPIA indicators, military expenditure, CO2 emissions, fuel prices, electricity access, air traffic, merchandise trade, and foreign direct investment. Country classification hierarchies and group aggregate data reflect new fiscal year 2016 income classifications.

A supplemental update includes adjusted savings, energy, electricity, sectoral CO2, natural resource rents, and telecommunications indicators. Corrections have also been made for the following issues: constant GNI related indicators (including PPP, GNI growth and net income from abroad) for Belgium and Estonia for 2014; historical national accounts data (including the DEC alternative conversion factor and US dollar derived series using GDP and GNI) up to 1990 for Argentina, Brazil, Democratic Republic of Congo, Nicaragua, and Peru; data for domestic credit to the private sector by banks for Zimbabwe for 2008 (removed); military expenditure as a percentage of GDP for Russian Federation for 1988-90 (removed); and PM2.5 series. Aggregate data for indicators covered by these corrections, as well as aggregate data for scientific and technical journal articles, have also been revised.

World Development Indicators: April 2015

Full update of development data to coincide with publication of the World Development Indicators 2015 book. New indicators include those for education expenditure, children in employment, and firm-level financing and bribery incidence.

World Development Indicators: March 2015

Full update of development data to coincide with publication of the World Development Indicators 2015 book. New indicators include those for education expenditure, children in employment, and firm-level financing and bribery incidence.

National accounts data have been corrected and revised for Bahrain, Israel, Kuwait, and Oman (local currency values, all years; with minor adjustments to purchasing power parity values); Kenya (constant values and growth rates, 1960-61); Mauritania (constant values and growth rates, 1960-93; and services value added); and Argentina (restoration of previously published current price values from 1994 to 2003). Other corrections include purchasing power parity household consumption data for Denmark, Germany, Spain, and aggregates from 1990 to 2002; and remittances data for Timor-Leste and aggregates for 2013. Debt to export ratios have been updated for 2013; and aggregates for statistical capacity indicators have been revised. Indicators sourced from the International Road Federation have been removed pending a review of their licensing agreement.

World Development Indicators: January 2015

Telecommunications data from ITU have been updated, along with data for pre-primary enrollment and lower secondary completion rates, and grants data for 2013. Corrections and revisions have been made to data for internal water resources and nationally protected areas. Data related to GNI and net income from abroad for Timor-Leste and Chad have also been corrected.

World Development Indicators: December 2014

This release features new external debt data from the International Debt Statistics database, and revised national accounts, PPP, balance of payments, monetary and government finance indicators, labor series, and trade indexes and trade facilitation indicators. Corrections have been made to China's historical GDP growth rate series before the year 2000. New series have been added for statistical capacity building, unemployment, particulate matter, and access to electricity and non-solid fuel. The latter indicators are now sourced from the World Bank's Sustainable Energy for All database. Water pollution indicators, which were from a research data set no longer being maintained, have been removed.

World Development Indicators: November 2014

Additional updates to poverty and income distribution have been published, along with name and metadata changes for urban and rural poverty indicators. Data have been updated for Doing Business indicators, including new figures for 2014; methodology changes have been introduced for strength of legal rights index (now 0-12 scale) and depth of credit information index (now 0-8 scale). 2014 data are also available for logistics performance indicators, threatened species, and average annual precipitation. Freshwater series have been updated for 2013. Corrections have been made to Argentina's GNI, gross national savings, and adjusted savings series, which also affect aggregate data; minor national accounts updates for Argentina for 2013 since September have also been included. Aggregate data for charges for the use of intellectual property for 2013 have been removed due to insufficient country-level data.

World Development Indicators: October 2014

Four new shared prosperity indicators have been added that show the level and annualized growth of survey mean consumption or income per capita for the total population and the bottom 40%. Data have also been updated for malnutrition and poverty indicators.

World Development Indicators: September 2014

New child mortality data, including 2013 estimates, have been released. Data have also been updated for national accounts, balance of payments, government finance and monetary indicators, urban and rural population, HIV-related indicators, land use, fresh water, literacy, Enterprise Surveys, and private participation in infrastructure.

World Development Indicators: July 2014

2013 data (plus revised historical data, where necessary) for all countries and groups for population-, GDP- and GNI-related indicators have been released. Other data that have been updated include balance of payments, government finance and monetary indicators, CPIA indicators, ICT indicators, military expenditure, air traffic, Enterprise Surveys, merchandise trade, homicides, and bilateral aid flows. Country classification hierarchies and group aggregate data reflect new fiscal year 2015 income classifications. Kyrgyz Republic and South Sudan have moved from low income to lower middle income. Two additional aggregate groups have been added: Fragile and conflict affected situations (FCS); and Central Europe and the Baltics (CEB).

A supplemental update includes adjusted savings indicators, PM10, natural resources rents, education aggregates, personal remittances, population density, and research and development indicators. Corrections have been made for Ecuador's and Peru's national accounts series, which also affect aggregate data (most notably 2013 growth rates for exports, imports, and consumption for Latin America and the Caribbean); and China's constant price series for services and consumption before the year 2000. Constant price purchasing power parity data have been added for 2013.

World Development Indicators: May 2014

Purchasing power parity (PPP) indicators have been revised based on the 2011 International Comparison Program (ICP) estimates released on April 30, 2014. Annual estimates from OECD and Eurostat have previously appeared in the WDI database; for other countries annual estimates are derived from the 2011 benchmark year through a simple extrapolation method that applies the relative rate of inflation observed in the country compared with the United States to the base year PPP estimates. Extrapolation for the GDP conversion factor uses the GDP implicit deflator. Extrapolation for private consumption uses the consumer price index. PPP data are now provided only from 1990, as the longer the time period between the estimate and the benchmark, the greater the risk of inaccuracy. This database update also features revised estimates for maternal mortality indicators from 1990 to 2013 from the Maternal Mortality Estimation Inter-Agency Group; revised life expectancy figures for Kazakhstan; updates for health expenditure and cause of death series; revised estimates for adjusted savings indicators; refined exchange rate and U.S. dollar conversions for euro area countries, along with corrections for Belarus, Estonia, Singapore and Republic of Yemen; revised national accounts data for Ethiopia and GNI corrections for Chad; corrected PM10 and metals depletion data for adjusted savings indicators; and national accounts revisions for Nigeria based on official government statistics released on 6 April, 2014. The new base year for Nigeria is 2010; and GDP estimates from 2010 to 2012 are 60 to 75 percent higher than previously reported.

The Little Data Book 2014

The cutoff date for data is February 1, 2014. For most economies PPP figures are extrapolated from the 2005 International Comparison Program (ICP) benchmark estimates or imputed using a statistical model based on the 2005 ICP. For 47 high- and upper middle-income economies conversion factors are provided by Eurostat and the Organisation for Economic Co-operation and Development (OECD).

World Development Indicators: April 2014

The April 2014 WDI database features a full update of development data to coincide with publication of the World Development Indicators 2014 book. New indicators include those for severe wasting, disaggregated by sex; and national estimates for labor force participation, ratios of employment to population, and unemployment. The topic Labor & Social Protection has been renamed Social Protection & Labor. Corrections have been made to constant price and purchasing power parity data for Armenia; constant price expenditure data for Nicaragua; and CO2 data for Palau. Constant price GDP and CPI data that are officially reported by the National Statistics and Censuses Institute of Argentina have be restored. The International Monetary Fund has, however, issued a declaration of censure and called on Argentina to adopt remedial measures to address the quality of the official GDP and CPI data. Alternative data sources have shown significantly lower real growth and higher inflation than the official data since 2008. In this context, the World Bank is also using alternative data sources and estimates for the surveillance of macroeconomic developments in Argentina. National accounts data for Nigeria are based on official government statistics as of 1 February 2014. New estimates of nominal and constant GDP released by the Nigeria Bureau of Statistics on 6 April 2014 will be included in future editions of the WDI database.

Updates to the April WDI database also contain revisions to indicator coverage. Please click here to see the latest list of additions, deletions, and changes in codes, descriptions, definitions, sources and topics.

World Development Indicators: December 2013

This release features new external debt data from the International Debt Statistics database, updated energy and poverty series, and revised national accounts, PPP, balance of payments, monetary and government finance indicators, and education and labor statistics.

World Development Indicators: November 2013

Data have been updated for Doing Business indicators, including new figures for 2013. Doing Business now covers 189 countries. New HIV/AIDS data, including 2012 estimates, have been released. National accounts data have also been updated for Barbados. Corrections have been made to Bangladesh's poverty estimates for 1996.

World Development Indicators: October 2013

Data have been updated for malnutrition and poverty indicators. Corrections have been made to total reserves including gold and related indicators for 2012; government finance data for Liberia for all years; and monetary data, including domestic credit to the private sector, for Slovenia from 1992 to 2006.

World Development Indicators: September 2013

New child mortality data, including 2012 estimates, have been released. Data have also been updated for national accounts, balance of payments, government finance and monetary indicators, energy, CO2 emissions, land use, and military expenditures.

World Development Indicators: August 2013

Updates include access to an improved water source, access to improved sanitation facilities, access to electricity, tuberculosis, poverty, merchandise trade, and phone and Internet indicators. 2012 PPP indicators for OECD countries and aggregates have been revised. Corrections have been made for Philippines high-tech exports for 2010; and for national accounts data for Ghana, Pakistan, and Solomon Islands. Aggregate population growth rates for 2012 have been added.

World Development Indicators: July 2013

2012 data (plus revised historical data, where necessary) for all countries and groups for population-, GDP- and GNI-related indicators have been released. National accounts constant U.S. dollar data are now based to the year 2005. Other data that have been updated include balance of payments, government finance and monetary indicators, education, CPIA indicators, and bilateral aid flows. Country classification hierarchies and group aggregate data reflect new fiscal year 2014 income classifications.

World Development Indicators: May 2013

Revisions and corrections have been made to poverty data and metadata; aggregate rates for the lifetime risk of maternal death; Guatemala's value added national accounts data from 2009 to 2011; and to the calculation of adjusted savings aggregates for gross savings, particulate emissions damage, and adjusted net savings.

World Development Indicators: April 2013

The April WDI database features a full update of development data to coincide with publication of the World Development Indicators 2013 book. Of note are new poverty data, including regional estimates for 2010. Balance of payments data are now based on the IMF's 6th edition of the Balance of Payments manual. New indicators include child malnutrition and under-five mortality series by gender, and additional series for children in employment.

Updates to the April WDI database also contain revisions to indicator coverage. Please click here to see the latest list of additions, deletions, and changes in codes, descriptions, definitions, sources and topics.

In the WDI 2013 book on page 115, Sint Maarten's listing for latest population census should be 2011, and it's listing for latest demographic, education, or household survey should be blank.

World Development Indicators: March 2013

The national poverty headcount ratio for Vietnam was revised from 14.2 to 20.7 for the year 2010.

World Development Indicators: February 2013

Data for youth labor force participation rates for ages 15-24 have been added.

World Development Indicators: January 2013

New data for threatened species and missing data for constant value private consumption series for OECD countries have been added. 2012 data only are available now for threatened species. National poverty data, including urban and rural values, have been updated. These poverty series now only include estimates that to the best of our knowledge are reasonably comparable over time. Corrections have been made for balance of payments group data for all years and market capitalization data for United Kingdom and groups for 2011. Malnutrition data for height, weight, overweight, and wasting have also been corrected. The previous data from December 2012 were for three standard deviations below the median for the international reference population instead of two standard deviations.

World Development Indicators: December 2012

This update features new external debt data from the newly-released International Debt Statistics publication, updated energy, emissions, freshwater, poverty, immunization, tuberculosis and HIV/AIDS series, and revised national accounts, PPP, balance of payments, monetary and government finance indicators, and education statistics. [Note: Even though Global Development Finance (GDF) is no longer listed in the WDI database name, all external debt and financial flows data continue to be included in WDI. The GDF publication has been renamed International Debt Statistics (IDS), and has its own separate database, as well.]

World Development Indicators: October 2012

New 2012 data for Doing Business and Logistic Performance indicators have been released. Net national savings data have been corrected.

World Development Indicators: September 2012

New child mortality estimates by the UN Inter-agency group for Child Mortality Estimation (UN IGME) have been released for neonatal, infant and under-five mortality; and new malnutrition estimates have been jointly released by WHO, UNICEF, and the World Bank. Other series that have been updated include education statistics, military expenditure, private participation in infrastructure, balance of payments series, monetary indicators, government finance indicators, and PPP related series. GNI and GDP were updated in July, but there are minor updates for some countries, including China. Corrections have been made for rural and urban population series, and 2011 national accounts for Argentina, Colombia, Costa Rica, and Panama.

World Development Indicators: July 2012

2011 data (plus revised historical data, where necessary) for all countries and groups for population-, GDP- and GNI-related indicators have been released. Other data that have been updated include balance of payments and monetary indicators, water and sanitation, education, CPIA indicators, bilateral aid flows, and logistics performance. Country classification hierarchies and group aggregate data reflect new fiscal year 2013 income classifications. Gibraltar and Mayotte have been removed from the database—Gibraltar's population has fallen below 30,000; and Mayotte became an overseas department of France on March 31, 2011.

World Development Indicators: May 2012

Maternal mortality updates for 2010 and revised historical data have been released to coincide with the publication of "Trends in Infant Mortality: 1990-2010, WHO, UNICEF, UNFPA and The World Bank estimates." A new series for number of maternal mortality deaths has also been added to the database. PPP conversion factors for Cyprus, Croatia, Latvia, Lithuania, FYR Macedonia, and Malta (for GDP) and Iceland and Ireland (for private consumption) have been corrected. All PPP-related series for these eight countries have also been recalculated. The series unit values for road sector energy consumption per capita (diesel fuel, gasoline fuel, and total) have been corrected to kilograms of oil equivalent per capita.

World Development Indicators: April 2012

This version features a full WDI update to coincide with publication of the World Development Indicators 2012 book (though some indicators were updated beforehand, such as external debt data in December 2011, and poverty data in March 2012). National accounts growth rates and shares data published in December 2011 for some Sub-Saharan Africa countries (most notably Lesotho, Mauritania and Zimbabwe) were not properly aligned with base data. These inconsistencies have been corrected in this release. Constant price GNI and GNI per capita data have also been corrected to reflect the proper application of deflated factor income values. Click here for revisions to WDI book table 4.10.

Updates to the April WDI & GDF database also contain revisions to indicator coverage. Please click here to see the latest list of additions, deletions, and changes in codes, descriptions, definitions, sources and topics.

On page 14 of the WDI book, chart and text references to carbon dioxide emissions are in billions of metric tons.

World Development Indicators: March 2012

Poverty data have been updated and revised to 2011. Grants data from OECD have been updated and revised to 2010. Electric power transmission and distribution loss data have been corrected to the proper scale. National accounts data for OECD countries from 1960 to 1969 have been restored. A correction has been made to the national accounts constant price series for United States from 1960 to 1981; group aggregate growth rates for 1981 were also corrected. A correction was also made to Venezuela's constant price manufacturing value added series from 1965 to 1997. Aggregate values for lifetime risk of maternal death (1 in: rate varies by country) - SH.MMR.RISK have been rounded to integer values to properly reflect the precision of the country values. South Sudan's population estimate for 2010 has been removed pending review of the data. A new estimate will be published July 1, 2012.

World Development Indicators: December 2011

This update features new external debt data, Doing Business and Enterprise Surveys indicators, immunization and tuberculosis series, and revised national accounts, balance of payments, monetary and government finance indicators, and education statistics. Emissions and energy-related data, including twenty new indicators, have been updated to coincide with the release of The Little Data Book on Climate Change.

World Development Indicators: September 2011

Population related indicators have been revised based on the United Nations World Population Prospects 2010. These population revisions also affect per capita series, such as GNI per capita and GDP per capita. Other series that have been updated include life expectancy, total fertility rates, mortality indicators, education statistics, poverty and income distribution series (major revisions), balance of payments series, monetary indicators, government finance indicators, PPP related series, trade indices and tariff indicators, FDI and portfolio equity flows, remittance related series, official development assistance and other official flows (from OECD), tourism related indicators, trade within region/outside region related series, and refugee related indicators. GNI and GDP were updated in July, but there are minor updates for some countries. [Note: Shortly after the initial release of the September 2011 database, corrections were made to FDI net inflows for Turkmenistan for 2007 and 2008, and for Guinea-Bissau and Guyana for 2009 and 2010. These corrections also affected FDI net inflows as a percentage of GDP, as well as aggregate values for both series.]

World Development Indicators: July 2011

2010 data (plus revised historical data, where necessary) for all countries and groups for population-, GDP- and GNI-related indicators are released. Country classification hierarchies and group aggregate data reflect the World Bank's fiscal year 2012 income classifications. Netherlands Antilles (ANT) is removed. Curacao (CUW), Sint Maarten (Dutch part) (SXM), and St. Martin (French part) (MAF) are added. 2009 income distribution data for Chile, and the unit descriptions for terrestrial protected areas (% of total land area) and marine protected areas (% of territorial waters) have been corrected. 2010 ranking table figures for population, GNI and GNI per capita for Timor-Leste posted on July 1 have also been corrected.

World Development Indicators: April 2011

Updates to the WDI & GDF database may contain revisions to indicator coverage. Please click here to see the latest list of additions, deletions, and changes in codes, descriptions, definitions, sources and topics.

Table 2.8: For India, poverty gap at $1.25 a day is 13.6 for 1994 and 10.5 for 2005; and poverty gap at $2 a day is 34.1 for 1994 and 29.5 for 2005. For Mexico, population below $1.25 a day is 3.2 for 2006 and 3.4 for 2008; poverty gap at $1.25 a day is 1.1 for 2006 and 1.7 for 2008; population below $2 a day is 9.0 for 2006 and 8.1 for 2008; and poverty gap at $2 a day is 2.9 for 2006 and 3.2 for 2008.

Table 2.9: Gini index for Chile for 2009 is 52.1; Liberia for 2007 is 38.2; and Seychelles for 2007 is 65.8. A database only correction for Kyrgyz Republic for 1988 is 26.0.

Table 2.22: Data columns for adult mortality rate and survival to age 65 on the first page of the table between Hong Kong SAR, China and Honduras are incorrectly aligned by country. Data for the four columns should be shifted down one row (i.e, data shown for Hong Kong SAR, China are actually for Colombia, etc.), with the last row of data (Honduras) moved up to Hong Kong SAR, China.

Table 6.11: Total external debt as % of GNI for low income is 87.6 for 1995 and 32.7 for 2009; middle income is 37.3 for 1995 and 21.9 for 2009. Total debt service as % of exports of goods, services and income for low income is 25.6 for 1995 and 5.1 for 2009; middle income is 17.8 for 1995 and 11.5 for 2009.

Table 6.16: Net ODA as % of central government expense for El Salvador for 2009 is 6.1.

Monetary data (i.e., series beginning with FM and FS codes) contained errors for Cyprus (to 2008) , Germany (to 1998), Greece (2001), Ireland (to 1998), Italy (1999), Luxembourg (to 1998), Malta (2008-09), Portugal (1999), Slovak Republic (1993), Slovenia (1991), Spain (1999),Turkmenistan (1993) and Venezuela, RB (1960-61).

Pakistan's current price data for imports of good and services for 2008 was incorrect, which also affected related trade series and final consumption expenditure figures.

Health expenditure data for Somalia (1995-2001) should be presented as not available.

Constant price GNI per capita series for Cyprus, France, Georgia, Moldova, Morocco and Tanzania used incorrect population denominators.

Adjusted net national income in constant 2000 U.S. dollars used the wrong values for the 2000 base year. The growth rate series was not affected.

2011 Little Data Book on Private Sector Development

New business density label: The unit value should be new registrations per 1,000 working-age population. [Note: This correction also applies to the 2009 and 2010 books.]

2011 Little Data Book

Marshall Islands page: The unit value for forests should be sq. km.

World Development Indicators: December 2010

The December 2010 update of the World Development Indicators database contained an error for Zimbabwe's data for the following indicators: GDP per capita, PPP (constant 2005 international $); GDP per capita, PPP (current international $); GDP, PPP (constant 2005 international $); GDP, PPP (current international $); GNI per capita, PPP (current international $); GNI, PPP (current international $); Household final consumption expenditure, PPP (constant 2005 international $); Household final consumption expenditure, PPP (current international $); PPP conversion factor, GDP (LCU per international $); PPP conversion factor (GDP) to market exchange rate ratio; PPP conversion factor, private consumption (LCU per international $). Zimbabwe's data for these indicators should be presented as not available for all years in the WDI database.

Constant price GDP series from 1960 to 1964 for Ghana were linked incorrectly. 1965 growth rates and 1965-66 Atlas GNI and Atlas GNI per capita values were also affected.

Coverage for domestic credit provided by the banking sector and domestic credit to the private sector as percentages of GDP was incomplete.

China's gross capital formation series in constant prices were derived using incorrect deflators.

2009 WDI CD-ROM

Aggregate totals for telephone lines, mobile cellular subscriptions, mobile and fixed-line telephone subscribers, and Internet users were incomplete or were calculated using sparse country-level data.

Aggregate totals for electricity production (kWh) were calculated incorrectly.

Aggregate land and surface area data for 1960 were calculated using sparse country-level data and should be ignored.

Constant price series from 1960 to 1964 for Dominican Republic, Republic of Korea, Myanmar and Uruguay were linked incorrectly. 1965 growth rates and 1965-66 Atlas GNI and Atlas GNI per capita values for these countries were also affected.

WDI Online: September 2009

The September update of the WDI 2009 database contained an error for China's current U.S. dollar GDP for 2007 and 2008. The correct 2007 figures are: GDP: US$ 3,382,267 million; Atlas GNI: US$ 3,179,866 million; Atlas GNI per capita: US$ 2,410. The correct 2008 figures are: GDP: US$ 4,326,187 million; Atlas GNI: US$ 3,899,289 million; Atlas GNI per capita: US$ 2,940.

2009 Little Data Book

The correct income and regional groups for the following countries are: Malawi (Sub-Saharan Africa, Low income); Senegal (Sub-Saharan Africa, Low income); Singapore (High income); and Uganda (Sub-Saharan Africa, Low income).

2009 World Development Indicators Book

Figure 4.7a: Dollar figures for the charts are billions.

Table 5.12: Macedonia, FYR's expenditure for R&D percentage of GDP is 0.25.

Primary Data Documentation: The correct national currencies for the following economies are: Comoros (Comorian franc); Djibouti (Djibouti franc); Ghana (new Ghanaian cedi); Samoa (Samoan tala); and Suriname (Suriname dollar). Liberia's SNA price valuation is VAP.

Global Purchasing Power Parities and Real Expenditures: 2005 International Comparison Program (2008)

In table G1 (page 191), the GDP per capita, PPP value for Angola in the column ICP '05 should read 3,533. A corrected table is available online.

2008 Global Development Finance Book

In the income groups classification, low-income countries should include Afghanistan; middle-income countries should exclude Barbados, Estonia, and Trinidad and Tobago.

Syrian Arab Republic: The published data in GDF 2008 are incomplete and based on estimates. These data should not be used for analysis or assessment. GDF 2009 will not include external debt data for Syrian Arab Republic. Reporting will resume in the next edition (GDF 2010) with data provided by the government of Syria. As a result, Syria will not be included in regional aggregations in the upcoming GDF 2009 publication.

2008 World Development Indicators Book

Table 1.4: HIPC decision point for Guyana is November 2000. Tariff data for agricultural products are incorrect.

Table 2.15: Bulgaria physicians per 1,000 people is 3.6.

Table 2.17: Tanzania births attended by skilled health staff (% of total) is 43.

Table 4.8: Columns are incorrectly labeled as 1990; data are for 1995.

Table 4.14: Tanzania's consumer price index, average annual % growth for the period 2000-06 is 5.2. The consumer price index and inflation figures for Tanzania that were published are inconsistent with those obtained from the National Bureau of Statistics (NBS). As a result, the data should be replaced with the NBS figures.

Table 5.11: Data for secure Internet servers per million people are from 2006; corrected file has 2007 data; value for Republic of Korea is 498. Internet price basket data are incorrect.

Table 6.9: Present value of debt ratios have been revised for countries receiving debt relief as part of the Heavily Indebted Poor Countries Initiative.

2007 World Development Indicators Book

Tables 1.1 and 1.6: PPP gross national income totals and per capita values (and PPP rankings in Table 1.1) are based on previously published data.

Table 4a: The column years indicated should be 2005 and 2006. Total reserves data are for 2006.

Table 4.10: Madagascar central government finance data as a percentage of GDP for 2004 should be as follows: revenue (12.1), expense (12.6), cash surplus or deficit (-4.5), net incurrence of domestic liabilities (-0.7), and net incurrence of foreign liabilities (6.4).

Table 5.6: Madagascar tax revenue as a percentage of GDP should be 11.3 for 2000 and 10.9 for 2004.

Table 5.10: Price basket for mobile data are for 2006.

2007 WDI CD-ROM

Czech Republic has graduated from IBRD lending and no longer reports external debt data to the World Bank's Debtor Reporting System. The external debt data should not have appeared in the WDI database. Debt ratios are not valid.

Country level data for female population (% of total) are missing.

The description for agricultural machinery, tractors per arable land is incorrect. The data are shown per 100 sq. km of arable land, not hectares.

The description for the level of electric power transmission and distribution losses is incorrect. The data are shown in kWh, not million kWh.

Government finance data in local currency and as a percentage of GDP for Madagascar are five times too large due to a change in currency. Revised data use Madagascar ariary.

2007 Little Data Book

Group level stock market capitalization (% of GDP) for 2005 should be as follows: World (99.6); East Asia & Pacific (41.3); Europe & Central Asia (45.8); Latin American & Caribbean (44.6); Middle East & North Africa (49.1); South Asia (60.4); Sub-Saharan Africa (137.0); Low income (54.2); Middle income (49.5); Lower middle income (41.1); Upper middle income (60.1); Low & middle income (50.1); Europe EMU (64.8); and High income (112.9).

Madagascar central government revenue as a percentage of GDP should be 11.7 for 2000 and 12.1 for 2004; cash surplus/deficit as a percentage of GDP should be -2.0 for 2000 and -4.5 for 2004.

Mongolia should be listed as belonging to the East Asia & Pacific region.

2006 World Development Indicators Book

Table 1.2: Ratio of female to male enrollments in primary and secondary school are incorrect for Hong Kong, China, Croatia, Czech Republic, Estonia, Georgia, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Haiti, Honduras, Egypt, Arab Rep., Congo, Dem. Rep., Congo, Rep., Côte d'Ivoire, Eritrea, Ethiopia, Gabon, The Gambia, Ghana, Guinea, Guinea-Bissau, Denmark, Finland, France, Germany, and Greece.

Table 1.4: The country names for Burundi and Cameroon are in reverse order.

Table 2.7: India population below $2 a day is 79.9% and the poverty gap at $2 a day is 35.3%.

Table 4.a: South Africa total reserves for 2005 is $20,624 million.

Table 4.15a: The country with the third largest current account deficit is Australia (not Austria).

Tables 5.2 and 5.3: Data appearing for Korea, Dem. Rep. should instead be shown under Korea, Rep.; and Korea, Dem. Rep. should be shown as ".." (not available).

Table 5.8: United Kingdom total road network (km) for 2003 is 392,342.

Table 5.10: Internet users per 1,000 people for 2004 for Iran, Islamic Rep. is 82; World 140; Middle income 92; Lower middle income 76; Low and middle income 63; and Middle East and North Africa 58.

Photo credits for the WDI CD-ROM are: Shaida Badiee, Alex Baluyut, Curt Carnemark, Stan Constantio, Arne Hoel, Miso Lisanin, Bill Lyons, Eric Miller, Shehzad Noorani and Thomas Sennett (World Bank).

2006 WDI CD-ROM

Chile: constant price national accounts data have breaks in series for some indicators as a result of improper linking of different data with different base years.

2006 Little Data Book

Page 7: Saudi Arabia should not be included in the regional listing for Middle East and North Africa.

Korea, Dem. Rep.: data for starting a business should be shown as ".." (not available).

2005 World Development Indicators Book

Table 2.5: International poverty line estimates were revised for Azerbaijan, Belarus, Botswana, Burundi, Ethiopia, Gambia, India, Moldova, Nepal, Niger, Philippines, Portugal, Senegal, Swaziland, Tanzania, Trinidad and Tobago, Uganda, Uzbekistan, Venezuela, and Vietnam. Turkey survey year is 2001.

Table 2.7: Turkey survey year is 2001.

Table 5.4: S&P Investable index percentage change estimates for 2004 for South Africa, Thailand, and Turkey are 50.1, -6.4, and 32.9, respectively.

Table 5.10: Benin transmission and distribution losses for 2002 should be shown as ".." (not available).

Table 6.7: Belgium foreign direct investment for 2003 includes Luxembourg.

Table 6.13: Net migration figures are the number of migrants during the period, not an annual average.

2005 WDI CD-ROM

International poverty line estimates in the HTML and PDF files for Table 2.5 are incomplete. They should also include the new figures reported above for Gambia, India, Moldova, Tanzania, and Uganda. (Note: Poverty figures in the time series database are correct for all countries.)

2005 Global Development Finance Book

Maldives should be classified as less indebted.

2004 World Development Indicators Book

Table 4.15: Botswana net current transfers and current account balance for 2002 should be shown as ".." (not available).

Table 5.12: Hong Kong, China researchers in R&D per million people is 93.

2004 WDI CD-ROM

Botswana: net current transfers (BoP, current US$) and current account balance (BoP, current US$ and as % of GDP) for 2000 to 2002 should be shown as ".." (not available).

Estonia: inflation, food prices (annual %) for 1998 is 4.9%.

Population breakdown levels by age for male, female and total are incorrect before the year 2000 for numerous countries.

Reference: in the country classification table, Northern Mariana Islands should be listed as upper middle income; and Isle of Man and Malta should be listed as high income.

Reference: in the Excel and PDF files showing the list of countries, the former Federal Republic of Yugoslavia should be listed by its new name, Serbia and Montenegro.