Year	constant 2021 international $
1995	13431.527824603938
1996	14092.01456296717
1997	12223.31128034484
1998	12907.476504011216
1999	11942.47177161445
2000	12426.405605408352
2001	13475.566058550834
2002	14831.675686984472
2003	15670.355149705927
2004	16750.153319743502
2005	17920.499177279125
2006	18789.53910047103
2007	19226.61212434265
2008	21086.16938904941
2009	20815.173147504025
2010	21515.069838659034
2011	21861.741515047124
2012	22570.933028859177
2013	22375.817015262575
2014	23025.01115186405
2015	23420.52250281205
2016	24287.98434573186
2017	25367.070583070006
2018	25946.48258992276
2019	27291.966064659082
2020	26169.45052756381
2021	28236.895707532207
2022	31461.85347986144
2023	32174.930030202195