Year	current international $
1990	5818.581540274908
1991	6280.9061663085195
1992	6424.7696048647185
1993	6512.535803494622
1994	6703.650717926965
1995	7135.132299832942
1996	7502.0589935819335
1997	8076.982810987578
1998	8023.905000911793
1999	8734.937520688865
2000	8923.469888668416
2001	8965.84114228129
2002	9479.19471607402
2003	9937.825113435807
2004	10299.530775430243
2005	10908.62423297509
2006	11958.750898134764
2007	12741.390375447705
2008	13139.725015818924
2009	11119.914491379206
2010	12141.486827468945
2011	12976.529195463409
2012	12091.687630023382
2013	12880.305255356876
2014	14417.013208003686
2015	13518.484863865731
2016	15416.584516340317
2017	14817.571276803406
2018	14805.29162560424
2019	14889.807302652125
2020	14208.270155347729
2021	16663.8685441919
2022	18516.191337299715
2023	19383.172595819982