Year	current international $
1990	6828.906175357412
1991	7327.125481399131
1992	7754.421767360939
1993	7916.480509145684
1994	8090.413163254648
1995	8257.152029333814
1996	8577.775834810958
1997	8934.840387729684
1998	9293.070261099128
1999	9403.534812051314
2000	10035.667951600588
2001	10204.264464808684
2002	10177.183456032768
2003	10577.541983912848
2004	11603.789834586201
2005	12321.568124383173
2006	13114.930476553598
2007	13685.542868140243
2008	14340.1899595254
2009	14110.112580695828
2010	14610.354298144905
2011	15161.788474642026
2012	16026.766564591468
2013	15974.117422585468
2014	15743.422441450713
2015	14275.718964529913
2016	13839.394626585217
2017	14439.40615737879
2018	15434.36796455826
2019	15550.098894626095
2020	14314.772193975745
2021	15640.157036039935
2022	17400.713764193966
2023	17913.68396450298