Year	constant 2021 international $
1990	12383.923878913101
1991	12229.673800405206
1992	11031.363435845762
1993	10170.501203465445
1994	8958.261293816606
1995	8057.537476994487
1996	8325.205793606458
1997	9289.618598966905
1998	10114.186934429546
1999	10553.745544078918
2000	11180.378110274563
2001	11772.663340741869
2002	12457.894195617167
2003	13462.958880643786
2004	15082.359937143756
2005	16647.131850086877
2006	18351.007855993306
2007	19918.90710337809
2008	21938.891182532552
2009	21877.168144625637
2010	23663.750660487287
2011	25171.3190180704
2012	25334.978818094572
2013	25264.60350096327
2014	25819.62879502383
2015	24473.809512954915
2016	23747.896436680363
2017	24608.694116873023
2018	25461.874743608914
2019	26050.919452896604
2020	25673.265343255727
2021	26597.539831446
2022	25478.917484895162
2023	26724.87100376952