Year	Purchasing power parity; 2011 international dollar (Units)
1980	21083.05
1981	19804.06
1982	20172.30
1983	20132.95
1984	20664.84
1985	21392.76
1986	20492.67
1987	16963.60
1988	17179.38
1989	19403.38
1990	19963.24
1991	20523.65
1992	19287.40
1993	19574.06
1994	19805.66
1995	20283.67
1996	20506.30
1997	21154.18
1998	21355.98
1999	18971.79
2000	18160.50
2001	18098.43
2002	17689.97
2003	17552.06
2004	17315.71
2005	16760.52
2006	16039.72
2007	16558.72
2008	16228.91
2009	15278.44
2010	15642.07
2011	16138.12
2012	16363.72
2013	16616.76
2014	16745.89
2015	16838.04
2016	16759.47
2017	16466.03
2018	16440.93
2019	16732.69
2020	17154.06
2021	17628.09
2022	18192.06
2023	18776.71
2024	19365.50