Year	Purchasing power parity; 2011 international dollar (Units)
1990	8416.20
1991	8311.13
1992	7497.08
1993	6911.74
1994	6110.23
1995	5460.17
1996	5631.09
1997	6305.39
1998	6870.36
1999	7119.19
2000	7551.14
2001	7934.17
2002	8382.40
2003	9035.79
2004	10140.50
2005	11173.37
2006	12375.99
2007	13517.77
2008	14960.90
2009	15029.46
2010	16218.12
2011	17152.52
2012	17474.95
2013	17651.34
2014	17935.21
2015	17224.72
2016	16759.49
2017	17171.22
2018	17780.64
2019	18183.71
2020	18685.42
2021	19177.72
2022	19650.16
2023	20144.03
2024	20649.70