Year	current international $
1990	3639.704709838154
1991	3714.4822329850026
1992	3877.8797562235395
1993	3992.2463524351842
1994	4145.376039589184
1995	4332.7635892345625
1996	4533.404146600628
1997	4761.129314402733
1998	4975.225611815313
1999	5239.165491958591
2000	5582.275670964938
2001	5789.473905024145
2002	5895.3958874386535
2003	6075.590247081309
2004	6363.660636669624
2005	6722.027775164832
2006	7260.8318429959245
2007	7831.772557110003
2008	8388.041404300122
2009	8663.086866913458
2010	9034.63699841388
2011	9178.853589448554
2012	10560.141608760556
2013	10731.538886464607
2014	10464.192413467666
2015	11112.373624702466
2016	10864.53819004545
2017	11333.11842609277
2018	12559.965169184657
2019	13608.499714575963
2020	15494.07882275742
2021	15820.671380938813
2022	17769.22373975758
2023	18816.505592213485