Year	current international $
1990	3936.6117862841957
1991	4105.26237064416
1992	4449.176347818292
1993	4731.567325504993
1994	4758.774912604762
1995	5225.350752310235
1996	5384.0744253446
1997	5669.588793881657
1998	5973.61316527763
1999	6231.6195587214
2000	6487.58759839936
2001	6759.855633087466
2002	7243.8101927489315
2003	7904.932952059302
2004	8489.040605339349
2005	9018.337709523108
2006	10001.903526461185
2007	10671.998298281174
2008	10971.925603373245
2009	10934.6328851801
2010	10624.207466287748
2011	10837.639891682295
2012	11054.891335704398
2013	11698.971688914293
2014	12206.299792281592
2015	12434.411620045581
2016	13542.631094480974
2017	13590.094354097177
2018	14640.316947588255
2019	15233.655090180939
2020	15254.247144221528
2021	15673.73703681903
2022	18044.973212888668
2023	19875.689173992825