Year	Purchasing power parity; 2017 international dollar (Units)
1980	19598.505
1981	18409.574
1982	18751.883
1983	18715.305
1984	19209.741
1985	19886.405
1986	19049.698
1987	15769.125
1988	15969.712
1989	18037.110
1990	18557.547
1991	19078.491
1992	17929.291
1993	18195.771
1994	18411.059
1995	18855.411
1996	19062.370
1997	19664.623
1998	19852.220
1999	17635.904
2000	16881.744
2001	16824.041
2002	16444.344
2003	16316.144
2004	16096.439
2005	15580.344
2006	14910.298
2007	15392.754
2008	15086.161
2009	14202.626
2010	14540.644
2011	15001.764
2012	15211.482
2013	15446.707
2014	15566.740
2015	15652.462
2016	15579.432
2017	15302.638
2018	15232.163
2019	15604.385
2020	15122.576
2021	15151.007
2022	15419.511
2023	15425.935
2024	15534.273
2025	15612.273
2026	15682.902
2027	15750.773
2028	15814.317
2029	15886.615