Year	current international $
1990	7685.776352423774
1991	7955.642382028145
1992	8119.513352151296
1993	8446.04465913485
1994	8722.074042549206
1995	9311.670109480014
1996	9742.909532665784
1997	10051.643258852453
1998	10516.092111697682
1999	10582.491563885647
2000	11507.134063091951
2001	12085.155610643882
2002	12639.786327333462
2003	13226.529176758371
2004	13998.572033316397
2005	14947.31466987658
2006	16311.471426744272
2007	17704.346554114847
2008	18596.057688344892
2009	17710.760890879756
2010	18254.728726184905
2011	19166.46935216614
2012	20397.52914055746
2013	20712.215413816622
2014	20814.499412599856
2015	20279.470704841166
2016	20877.75491471342
2017	22324.084087634015
2018	23316.70802099904
2019	25186.603829469244
2020	23793.62565576684
2021	26011.57515709515
2022	28787.288595980444
2023	30303.264471102302