Year	Purchasing power parity; 2011 international dollar (Units)
1980	18247.38
1981	17477.04
1982	17421.58
1983	15273.41
1984	15632.39
1985	15340.11
1986	16077.82
1987	16437.15
1988	17079.57
1989	14351.53
1990	14786.12
1991	15842.94
1992	16416.70
1993	16091.90
1994	15368.41
1995	15632.06
1996	15272.60
1997	15917.57
1998	15651.35
1999	14428.33
2000	14468.73
2001	14713.30
2002	13192.67
2003	11974.82
2004	13941.06
2005	15139.89
2006	16378.58
2007	17541.55
2008	18189.96
2009	17346.05
2010	16837.10
2011	17285.97
2012	17996.47
2013	17980.52
2014	17039.99
2015	15763.97
2016	13037.88
2017	11075.01
2018	9487.13
2019	7399.43
2020	6889.02
2021	6544.57
2022	6413.67
2023	6317.47
2024	6222.71
