Year	Purchasing power parity; 2011 international dollar (Units)
1980	9082.00
1981	9502.95
1982	9605.14
1983	10268.09
1984	11497.09
1985	12586.55
1986	14280.63
1987	15495.80
1988	16550.26
1989	17580.04
1990	18127.33
1991	18371.77
1992	18285.16
1993	18825.06
1994	19574.31
1995	18228.22
1996	18907.66
1997	19393.54
1998	19770.80
1999	20009.09
2000	20906.23
2001	19537.38
2002	19527.45
2003	20490.03
2004	21434.90
2005	22566.69
2006	25168.40
2007	27206.25
2008	26908.65
2009	23399.02
2010	21483.23
2011	20812.72
2012	21313.32
2013	21064.63
2014	21811.27
2015	22447.91
2016	23281.03
2017	23868.65
2018	24872.47
2019	25587.78
2020	26152.08
2021	26520.41
2022	26762.99
2023	27007.78
2024	27254.81