GDP Data Base Years


A base year refers to the base point in time of a time series such as with a GDP deflator to convert GDP at current market prices into GDP at constant prices.

The reliability of GDP data is distorted by the failure of countries to regularly update their base years.

When GDP is revised and the base year is updated, it allows the statistician to reweight the relative importance of the different sectors of economic activity, and further change or reconsider the methods and data sources.

Data source: World Economics Research, London

GDP Base Year: All Countries Base Year World Economics GDP
Data Quality Rating
Afghanistan 2002 E
Albania Chained C
Algeria Chained C
Angola 2002 E
Argentina 2004 C
Armenia Chained B
Australia Chained A
Austria Chained A
Azerbaijan Chained D
Bahamas, The 2012 B
Bahrain 2010 C
Bangladesh 2016 E
Belarus Chained C
Belgium Chained A
Benin Chained C
Bhutan 2000 E
Bolivia 1990 E
Bosnia and Herzegovina Chained D
Botswana 2016 C
Brazil Chained B
Bulgaria Chained B
Burkina Faso 2015 C
Burundi 2005 E
Cambodia 2000 E
Cameroon 2016 D
Canada Chained A
Central African Republic 2005 E
Chad 2005 E
Chile Chained A
China 2015 C
Colombia Chained B
Comoros Chained D
Congo, Dem. Rep 2005 E
Congo, Rep. 2005 E
Costa Rica Chained B
Cote d'Ivoire 2015 C
Croatia Chained B
Cyprus Chained A
Denmark Chained A
Dominican Republic Chained B
Ecuador 2007 D
Egypt 2016 D
El Salvador 2014 C
Estonia Chained B
Eswatini 2011 D
Ethiopia 2015 E
Finland Chained A
France Chained A
Gabon 2001 E
Gambia 2013 D
Georgia Chained B
Germany Chained A
Ghana 2013 C
Greece Chained B
Guatemala Chained D
Guinea 2010 E
Guinea-Bissau 2015 E
Guyana 2012 E
Haiti 2011 E
Honduras 2000 E
Hong Kong Chained A
Hungary Chained B
Iceland Chained A
India 2011 C
Indonesia 2010 C
Ireland Chained A
Israel Chained A
Italy Chained A
Jamaica 2007 E
Japan Chained A
Jordan 2016 B
Kazakhstan Chained D
Kenya 2016 D
Korea, Rep. Chained A
Kuwait 2010 D
Kyrgyzstan Chained D
Laos 2012 E
Latvia Chained B
Lebanon Chained D
Lesotho 2012 C
Liberia 2016 E
Libya 2013 E
Lithuania Chained B
Luxembourg Chained A
Madagascar 2007 E
Malawi 2017 C
Malaysia 2015 B
Mali 1999 E
Malta Chained B
Mauritania 2014 D
Mauritius Chained B
Mexico 2013 C
Moldova Chained B
Mongolia 2015 B
Morocco Chained C
Mozambique 2014 D
Myanmar 2016 D
Namibia 2015 C
Nepal 2000 E
Netherlands Chained A
New Zealand Chained A
Nicaragua Chained D
Niger 2015 C
Nigeria 2010 E
North Macedonia Chained B
Norway Chained A
Oman 2018 B
Pakistan 2016 D
Panama Chained D
Papua New Guinea 2013 E
Paraguay 2014 D
Peru 2007 D
Philippines 2018 C
Poland Chained B
Portugal Chained A
Qatar 2018 B
Romania Chained B
Russia Chained C
Rwanda 2017 C
Saudi Arabia 2010 C
Senegal 2014 C
Serbia 2015 B
Sierra Leone 2006 D
Singapore Chained A
Slovak Republic Chained B
Slovenia Chained A
South Africa 2015 B
Spain Chained A
Sri Lanka 2015 C
Sudan 1996 E
Suriname 2015 C
Sweden Chained A
Switzerland Chained A
Taiwan Chained A
Tajikistan Chained E
Tanzania 2017 D
Thailand Chained D
Togo 2016 C
Tunisia Chained D
Türkiye Chained B
Turkmenistan Chained D
Uganda 2016 D
Ukraine Chained C
United Arab Emirates Chained B
United Kingdom Chained A
United States Chained A
Uruguay 2016 B
Uzbekistan Chained D
Vietnam 2010 E
Yemen, Rep. 2007 E
Zambia 2010 D
Zimbabwe 2012 E

See: Data for individual countries by using country lists

Data quality rating definitions:
         A: As good as it gets
         B: Good
         C: Use with caution
         D: Poor
         E: Extremely poor quality

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