Year	constant 2021 international $
1990	12461.698721272744
1991	12631.540542528383
1992	12755.801970811215
1993	13117.80224694173
1994	13572.047330941217
1995	13440.302970612907
1996	13739.935178828315
1997	14253.079957420809
1998	14441.937028110298
1999	14280.710516348556
2000	14571.625215907541
2001	14400.71789529489
2002	14272.176213682009
2003	14441.637682072795
2004	15011.928520838528
2005	15421.953169645283
2006	16037.927061854141
2007	16695.689181371497
2008	17130.32687485832
2009	16552.736898699095
2010	17457.46597175623
2011	18054.027027113563
2012	18331.04553061989
2013	18659.233894645266
2014	18739.0574383674
2015	18638.963918888654
2016	18412.786016005808
2017	18597.501279955068
2018	18739.521915760295
2019	18716.624608024253
2020	17335.100990753035
2021	18476.432186636484
2022	19096.203160063495
2023	19361.905629239198