Eurostat: February 2014 | International Monetary Fund (IMF): November 2013 | United Nations Population Division (UNPD): August 2013 | World Development Indicators (WDI): January 2014
Eurostat: February 2014 | International Monetary Fund (IMF): November 2013 | United Nations Population Division (UNPD): August 2013 | World Development Indicators (WDI): January 2014