Year	constant 2021 international $
1990	5149.003392900392
1991	5308.931178830323
1992	5287.21921001358
1993	5403.286363024559
1994	5545.774432762643
1995	5695.8391216785285
1996	5834.216462665844
1997	6011.7016070469435
1998	6200.288539046414
1999	6114.5119348437565
2000	6155.80697143782
2001	6149.651974393363
2002	6193.104826456276
2003	6250.903394294308
2004	6399.500393511232
2005	6567.641631496331
2006	6763.486584562612
2007	6949.495091732649
2008	7250.2811324116055
2009	7366.39122764101
2010	7541.367739136484
2011	7801.821978888628
2012	8066.865197401222
2013	8475.838760076924
2014	8796.49559521951
2015	9079.790150963812
2016	9321.591701116347
2017	9566.125327144475
2018	9822.956405391322
2019	9895.420075354828
2020	8910.587808386112
2021	9342.971844273055
2022	9565.315725982704
2023	9668.957101908156