Year	current international $
1990	7793.5772261417615
1991	8079.1355019825905
1992	8298.816070962748
1993	8746.398661921337
1994	9066.739547120285
1995	9617.387114274024
1996	10008.99646795635
1997	10441.200043338442
1998	10824.863278849214
1999	11076.97487277374
2000	11787.84114416015
2001	12342.266132245062
2002	12919.558249579486
2003	13557.762041734664
2004	14360.099259544659
2005	15212.162890938962
2006	16522.00721395238
2007	17880.490027188658
2008	18619.97794126983
2009	18175.71199777316
2010	18731.27988645737
2011	19618.197892860768
2012	20345.658907634912
2013	20660.685777448536
2014	20974.942150226383
2015	20394.266273969406
2016	21244.083327495493
2017	22714.976660527704
2018	23780.69412562724
2019	25654.63935967403
2020	24305.430456110604
2021	26843.734231402417
2022	29690.73961326798
2023	31386.591258814766