Year	current international $
1990	8885.83926419951
1991	8650.227773123936
1992	6974.06628316326
1993	6009.300982579919
1994	5576.778222549196
1995	5926.476008280599
1996	6383.334552824926
1997	7068.236464170492
1998	7762.505058303337
1999	7820.701012960848
2000	8446.927677608744
2001	9438.823339457538
2002	10480.696097049053
2003	12068.391057829933
2004	13030.83249581646
2005	14510.596784936353
2006	16483.85035827064
2007	19098.86534063617
2008	20721.139331997874
2009	18116.228528997042
2010	20093.34539485759
2011	22884.8755910695
2012	24703.740395216195
2013	26721.700216591908
2014	28184.281302316787
2015	28834.557024241083
2016	30925.241384076086
2017	33761.94750006774
2018	36376.52788390318
2019	40577.80373674546
2020	41168.2149817792
2021	46410.0676392912
2022	50997.27897102712
2023	51877.00651927686