Table 1.

Available data sources and time span of GDP estimates

Series	Maddison	Penn	World Bank	IMF	UN
Current LCUs	--	--	·	X	--
Constant LCUs (base year)	--	--	X (2005)	†· (varies)	--
Current USD	--	--	·	·	X
Constant USD (base year)	--	--	X (2000)	--	· (2005)
Current ID	--	X	X	†	--
Constant ID (base year)	† (1990)	† (2005)	† (2005)	--	--
Years covered	1950-2008	1950-2009	1960-2009	1980-2015	1970-2009

X = series exists.

† = used for international dollar series.

· = used for US dollar series.