Year	Purchasing power parity; 2011 international dollar (Units)
1980	16573.20
1981	17232.54
1982	17169.81
1983	17247.47
1984	17404.05
1985	17861.32
1986	18212.40
1987	19262.46
1988	19621.98
1989	19563.52
1990	20225.49
1991	19924.24
1992	20611.59
1993	20838.03
1994	21738.36
1995	23204.24
1996	23775.66
1997	24140.72
1998	24544.58
1999	24788.97
2000	26264.28
2001	25687.60
2002	25137.73
2003	24957.93
2004	25741.48
2005	26340.36
2006	27368.03
2007	28512.22
2008	28892.99
2009	28590.22
2010	29624.93
2011	30579.76
2012	30687.09
2013	31410.39
2014	32017.60
2015	32199.90
2016	32836.91
2017	33323.49
2018	33753.22
2019	34201.30
2020	34655.64
2021	35058.72
2022	35459.08
2023	35844.39
2024	36214.01
