Year	Purchasing power parity; 2011 international dollar (Units)
1980	11021.57
1981	10967.22
1982	11341.09
1983	11973.09
1984	12640.07
1985	12570.42
1986	12804.52
1987	12833.85
1988	12703.02
1989	11923.12
1990	11240.51
1991	9802.24
1992	8977.38
1993	9164.72
1994	9583.53
1995	10328.92
1996	10796.76
1997	10197.37
1998	9754.98
1999	9688.71
2000	9981.83
2001	10552.62
2002	11412.18
2003	12135.77
2004	13215.17
2005	13855.79
2006	15060.28
2007	16190.33
2008	18121.76
2009	17285.41
2010	16730.24
2011	17146.82
2012	17592.78
2013	18280.13
2014	18967.10
2015	19778.34
2016	20848.38
2017	22437.92
2018	23508.44
2019	24238.65
2020	24967.29
2021	25717.92
2022	26491.10
2023	27287.82
2024	28108.31