Year	Purchasing power parity; 2011 international dollar (Units)
1980	20103.92
1981	21730.13
1982	24229.27
1983	26086.54
1984	27732.70
1985	31760.45
1986	30413.97
1987	27482.14
1988	28923.61
1989	28131.71
1990	33668.30
1991	34449.44
1992	36075.67
1993	37013.17
1994	37253.45
1995	37981.99
1996	38138.54
1997	39632.54
1998	39924.08
1999	39338.85
2000	41188.28
2001	42309.82
2002	41157.94
2003	39399.55
2004	39221.60
2005	39463.10
2006	40770.26
2007	41706.83
2008	44170.27
2009	45284.95
2010	46137.80
2011	45614.92
2012	45262.28
2013	43556.33
2014	42719.52
2015	43987.80
2016	43510.95
2017	41821.18
2018	41408.37
2019	40590.84
2020	41789.37
2021	41613.09
2022	40811.57
2023	40105.31
2024	39536.56