Country uses the 1993 System of National Accounts methodology
Enhanced General Data Dissemination System (e-GDDS)
Integrated household survey (IHS), 2016/17
Integrated household survey (IHS), 2008/09
Original chained constant price data are rescaled.
Country uses the 2008 System of National Accounts methodology
Living Standards Measurement Study Survey (LSMS), 2012
2011. Population data compiled from administrative registers.
Arab World aggregate. Arab World is composed of members of the League of Arab States.
Special Data Dissemination Standard (SDDS)
Multiple Indicator Cluster Survey, 2011/12
Fiscal year end: June 30; reporting period for national accounts data: FY.
Expenditure survey/budget survey (ES/BS), 2010
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 13.7603 Austrian schilling. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
Special Data Dissemination Standard Plus (SDDS+)
Core Welfare Indicator Questionnaire Survey (CWIQ), 2014
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 40.3399 Belgian franc. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
2011. Population data compiled from administrative registers in combination with other sources of data, such as a sample surveys.
Core Welfare Indicator Questionnaire Survey (CWIQ), 2015
Living Standards Measurement Study, 2007
Expenditure survey/budget survey (ES/BS), 2014
2010. Population data compiled from administrative registers.
Expenditure survey/budget survey (ES/BS), 2015
Data before 2015 were adjusted to reflect the new denomination effective from July 1, 2016 (BYN), a decrease of 10,000 times (1 BYN = 10,000 BYR)
Multiple Indicator Cluster Survey, 2015/16
2009. Economic Census, Natural Resources Census, Livestock Census, Livestock and Aquaculture Census or Sample Agricultural Census.
Core Welfare Indicator Questionnaire Survey (CWIQ), 2015/16
Multiple Indicator Cluster Survey, 2018/19
Fiscal year end: March 31; reporting period for national accounts data: CY.
Central Europe and the Baltics aggregate.
2010. Population data compiled from administrative registers in combination with other sources of data, such as a sample surveys.
Yes. Vital registration for Guernsey and Jersey.
On 1 July 1997 China resumed its exercise of sovereignty over Hong Kong; and on 20 December 1999 China resumed its exercise of sovereignty over Macao. Unless otherwise noted, data for China do not include data for Hong Kong SAR, China; Macao SAR, China; or Taiwan, China.
National Sample Survey on Population Changes, 2014
Multiple Indicator Cluster Survey, 2017/18
Multiple Indicator Cluster Survey, 2014/15
Core Welfare Indicator Questionnaire Survey (CWIQ)/Priority survey (PS), 2011
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate entered into force on January 1, 2008: 1 euro = 0.585274 Cyprus pounds. Please note that historical data are not actual euros and are not comparable or suitable for aggregation across countries.
2011. Population figures compiled from administrative registers and sample surveys while data on housing characteristics are collected through full field enumeration.
Multiple Indicator Cluster Survey, 2018/2019
East Asia & Pacific (excluding high income)
East Asia and Pacific regional aggregate (does not include high-income economies).
Early-dividend countries are mostly lower-middle-income countries further along the fertility transition. Fertility rates have fallen below four births per woman and the working-age share of the population is likely rising considerably.
East Asia and Pacific regional aggregate (includes all income levels).
Europe & Central Asia (excluding high income)
Europe and Central Asia regional aggregate (does not include high-income economies).
Europe and Central Asia regional aggregate (includes all income levels).
Country uses the 1968 System of National Accounts methodology
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 166.386 Spanish peseta. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
The following irrevocable euro conversion rate entered into force on January 1, 2011: 1 euro = 15.6466 Estonian kroon. Please note that historical data are not actual euros and are not comparable or suitable for aggregation across countries.
2012. Population data compiled from administrative registers in combination with other sources of data, such as a sample surveys.
Fiscal year end: July 7; reporting period for national accounts data: FY.
Interim Demographic and Health Survey, 2019
Expenditure survey/budget survey (ES/BS), 2015/16
Fragile and conflict affected situations
Fragile and conflict-affected situations aggregate.   Countries are distinguished based on the nature and severity of issues they face. The classification uses the following categories: - Countries with high levels of institutional and social fragility, identified based on publicly available indicators that measure the quality of policy and institutions and manifestations of fragility. - Countries affected by violent conflict, identified based on a threshold number of conflict-related deaths relative to the population. This category includes two sub-categories based on the intensity of violence: countries in high-intensity conflict and countries in medium-intensity conflict.  For more information, please visit https://www.worldbank.org/en/topic/fragilityconflictviolence/brief/harmonized-list-of-fragile-situations.
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 5.94573 Finnish markka. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
Expenditure survey/budget survey (ES/BS), 2013
The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 6.55957 French franc. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
Fiscal year ends on September 30; reporting period for national accounts data: FY. Based on the Pacific and Virgin Islands Training Initiative, national accounts data have been revised.
Living Standards Measurement Study Survey (LSMS)/Integrated household survey (IHS), 2017
United Kingdom of Great Britain and Northern Ireland
Includes self-governed areas only, which mostly exclude Abkhazia and South Ossetia, but small areas in Abkhazia and South Ossetia are included before 2008 or 2009 because of the changes in self-governed areas.
Living Standards Measurement Study Survey (LSMS), 2017
Core Welfare Indicator Questionnaire Survey (CWIQ), 2012
Core Welfare Indicator Questionnaire Survey (CWIQ), 2010
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 340.75 Greek drachma. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
Living Standards Measurement Study Survey (LSMS), 2014
Multiple Indicator Cluster Survey, 2019/20
High income group aggregate. High-income economies are those in which 2019 GNI per capita was $12,536 or more.
Hong Kong Special Administrative Region of the People's Republic of China
On 1 July 1997 China resumed its exercise of sovereignty over Hong Kong. Unless otherwise noted, data for China do not include data for Hong Kong SAR, China; Macao SAR, China; or Taiwan, China. Agriculture value added includes mining and quarrying.
Heavily indebted poor countries aggregate.
2010. Economic Census, Natural Resources Census, Livestock Census, Livestock and Aquaculture Census or Sample Agricultural Census.
Fiscal year end: September 30; reporting period for national accounts data: FY.
IDA and IBRD total group aggregate (includes IDA only, IDA blend, and IBRD only).
IDA total group aggregate (includes IDA only and IDA blend).
Fiscal year end: March 31; reporting period for national accounts data: CY. Data for Indonesia include Timor-Leste through 1999 unless otherwise noted.
Fiscal year end: March 31; reporting period for national accounts data: FY.
Integrated household survey (IHS), 2011/12
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 0.787564 Irish pound. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
Fiscal year end: March 20; reporting period for national accounts data: FY.
Iran’s Multiple Indicator Demographic and Health Survey, 2010
Expenditure survey/budget survey (ES/BS), 2016
2009. Population data compiled from administrative registers in combination with other sources of data, such as a sample surveys.
Expenditure survey/budget survey (ES/BS), 2012
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 1936.27 Italian lira. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
Expenditure survey/budget survey (ES/BS), 2017
Fiscal year end: June 30; reporting period for national accounts data: CY.
Integrated household survey (IHS), 2015/16
Expenditure survey/budget survey (ES/BS), 2006
Latin America & Caribbean (excluding high income)
Expenditure survey/budget survey (ES/BS), 2011/12
Pre-2000 data will be revised further for consistency and quality purpose.
Socialist People's Libyan Arab Jamahiriya
Least developed countries: UN classification
Low income group aggregate. Low-income economies are those in which 2019 GNI per capita was $1,035 or less.
2015. Population data compiled from administrative registers in combination with other sources of data, such as a sample surveys.
Democratic Socialist Republic of Sri Lanka
Lower middle income group aggregate. Lower-middle-income economies are those in which 2019 GNI per capita was between $1,036 and $4,045.
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate entered into force on January 1, 2015: 1 euro = 3.45280 Lithuanian litas. Please note that historical data are not actual euros and are not comparable or suitable for aggregation across countries. Based on data from EUROSTAT, the new reference year is 2010.
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 40.3399 Luxembourg franc. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate entered into force on January 1, 2014: 1 euro = 0.702804 Latvian lats. Please note that historical data are not actual euros and are not comparable or suitable for aggregation across countries. Based on data from EUROSTAT, the new reference year is 2010.
Macao Special Administrative Region of the People's Republic of China
On 20 December 1999 China resumed its exercise of sovereignty over Macao. Unless otherwise noted, data for China do not include data for Hong Kong SAR, China; Macao SAR, China; or Taiwan, China.
Morocco National Survey on Population and Family Health, 2010/11
2016. Population data compiled from administrative registers.
Excluding Transnistria. For 1950-94, World Bank estimates using UN World Population Prospects' growth rates of whole Moldova.
Integrated household survey (IHS), 2009/10
Middle East and North Africa regional aggregate (includes all income levels).
Fiscal year ends on September 30; reporting period for national accounts data: FY.
Republic of the Marshall Islands Demographic and Health Survey, 2007
Middle income group aggregate. Middle-income economies are those in which 2017 GNI per capita was between $996 and $12,055.
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate entered into force on January 1, 2008: 1 euro = 0.4293 Maltese lira. Please note that historical data are not actual euros and are not comparable or suitable for aggregation across countries. National accounts data source from 1995 to 2015 is Eurostat; prior to 1995 is UN. The new reference year is 2010.
Middle East & North Africa (excluding high income)
Montenegro declared independence from Serbia and Montenegro on June 3, 2006. Where available, data for each country are shown separately. However, for Serbia, some indicators continue to include data for Montenegro through 2005.
Commonwealth of the Northern Mariana Islands
National account data were adjusted to reflect the new banknote (1 new ouguiya = 10 old ouguiya)
2015. Economic Census, Natural Resources Census, Livestock Census, Livestock and Aquaculture Census or Sample Agricultural Census.
North America regional aggregate. There are no economies in North America classified as low or middle income.
Core Welfare Indicator Questionnaire Survey (CWIQ)/Priority survey (PS), 2014
2007. Economic Census, Natural Resources Census, Livestock Census, Livestock and Aquaculture Census or Sample Agricultural Census.
Living Standards Measurement Study Survey (LSMS), 2016
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 2.20371 Netherlands guilder. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
Fiscal year end: July 14; reporting period for national accounts data: FY.
Living Standards Measurement Study Survey (LSMS), 2010/11
Nauru Demographic and Health Survey, 2007
Integrated household survey (IHS), 2014/15
Continuous Demographic and Health Survey, 2014
The Independent State of Papua New Guinea
Pre-dividend countries are mostly low-income countries, lagging in key human development indicators and with current fertility levels above four births per woman. They face very rapid population growth.
Democratic People's Republic of Korean won
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate was adopted by the EU Council on January 1, 1999: 1 euro = 200.482 Portuguese escudo. Please note that historical data before 1999 are not actual euros and are not comparable or suitable for aggregation across countries.
Expenditure survey/budget survey (ES/BS), 2016/17
Post-dividend countries are mostly high-income countries where fertility has transitioned below replacement levels.
Romania Reproductive Health Survey, 2004
Russian Federation Reproductive Health Survey, 2011
Expenditure survey/budget survey (ES/BS), 2009
Continuous Demographic and Health Survey, 2017
Solomon Islands Demographic and Health Survey, 2006/07
Integrated household survey (IHS), 2012/13
1987. Enumeration of settled population was in November 1986 and of nomads in February 1987.
Montenegro declared independence from Serbia and Montenegro on June 3, 2006. Where available, data for each country are shown separately. However, for Serbia, some indicators, such as those series for which data appear only for Serbia and not Montenegro--e.g., aid, environment, external debt, balance of payments, various social indicators excluding population--continue to include data for Montenegro through 2005. Moreover, data from 1999 onward for Serbia for most indicators exclude data for Kosovo, 1999 being the year when Kosovo became a territory under international administration pursuant to UN Security Council Resolution 1244 (1999); any exceptions are noted. Kosovo became a World Bank member on June 29, 2009; available data are shown separately for Kosovo. In 2011, the Statistical Office of Serbia improved the methodology of national accounts data for 2003 onward. Specifically, the classification of sectors was revised.
Sub-Saharan Africa (excluding high income)
Sub-Saharan Africa regional aggregate (does not include high-income economies).
Sub-Saharan Africa regional aggregate (includes all income levels).
Small states (members of the Small States Forum) aggregate.
Democratic Republic of São Tomé and Principe
National account data were adjusted to reflect the new banknote (1 new Dobra STN = 1000 old Dobra STD)
Expenditure survey/budget survey (ES/BS), 1999
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate entered into force on January 1, 2009: 1 euro = 30.126 Slovak koruna. Please note that historical data are not actual euros and are not comparable or suitable for aggregation across countries.
A simple multiplier is used to convert the national currencies of EMU members to euros. The following irrevocable euro conversion rate entered into force on January 1, 2007: 1 euro = 239.64 Slovenian tolar. Please note that historical data are not actual euros and are not comparable or suitable for aggregation across countries.
2018. Population data compiled from administrative registers.
Fiscal year end: March 31; reporting period for national accounts data: CY. Authorities revised national accounts from 1999 to 2015.
Expenditure survey/budget survey (ES/BS), 2009/10
Expenditure survey/budget survey (ES/BS), 2007
East Asia & Pacific (IDA & IBRD countries) aggregate.
Europe & Central Asia (IDA & IBRD countries) aggregate.
Multiple Indicator Cluster Survey, 2017; Malaria Indicator Survey, 2017
Fiscal year end: September 30; reporting period for national accounts data: CY.
Living Standards Measurement Study Survey (LSMS), 1998
Latin America & the Caribbean (IDA & IBRD countries) aggregate.
Living Standards Measurement Study Survey (LSMS), 2014/15
Middle East & North Africa (IDA & IBRD countries) aggregate.
South Asia (IDA & IBRD countries) aggregate.
Sub-Saharan Africa (IDA & IBRD countries) aggregate.
Upper middle income group aggregate. Upper-middle-income economies are those in which 2019 GNI per capita was between $4,046 and $12,535.
Multiple Indicator Cluster Survey, 2012/13
2010. Traditional decennial census with full field enumeration, and a continuous sample survey.
Multiple Indicator Cluster Survey, 2013/14
Vanuatu Demographic and Health Survey/Multiple Indicator Cluster Survey, 2013
Fiscal year ends on June 30; reporting period for national accounts data: FY.
Expenditure survey/budget survey (ES/BS), 2014/15
National accounts data were rebased to reflect the January 1, 2013, introduction of the new Zambian kwacha at a rate of 1,000 old kwacha = 1 new kwacha.