Year	current international $
1990	20544.602958048185
1991	19954.65353866857
1992	19216.85991731251
1993	19308.967012951263
1994	19938.66014490072
1995	20853.910365197953
1996	21742.174833407207
1997	22023.60956039973
1998	22935.107155057678
1999	24542.094776364767
2000	25757.817783636783
2001	26651.251816478394
2002	27433.323122504808
2003	27254.858761081534
2004	27856.244923004506
2005	29302.64829780248
2006	30539.720040593496
2007	31375.7034778865
2008	30795.500911581796
2009	29267.1739879743
2010	29658.419621335895
2011	30078.951999985955
2012	30564.248563071782
2013	29604.365936991326
2014	30771.704715265456
2015	31094.55307939585
2016	31277.80743808735
2017	32982.31393476334
2018	33876.15695033093
2019	34541.707494655326
2020	25459.21851506479
2021	28510.90948890732
2022	33637.50479818187
2023	35554.79948063974