Year	constant 2021 international $
1990	11900.773748286314
1991	11871.118985334133
1992	12200.275339989324
1993	12142.868660870437
1994	12164.466443874362
1995	12227.850711036792
1996	12578.024046404596
1997	12798.914429724746
1998	13150.11279264317
1999	13185.485434899123
2000	13762.338142962155
2001	13724.682993059301
2002	13697.694812602193
2003	14043.991059031236
2004	14856.124470256334
2005	15241.845369477942
2006	15745.304359937294
2007	16186.517292795908
2008	16548.112745518905
2009	16342.60013148339
2010	16792.433692131985
2011	17122.86061404679
2012	17343.19162321238
2013	17299.870835665926
2014	17436.851172085513
2015	17626.760696358957
2016	18110.896161463133
2017	18163.153550707426
2018	18259.319940516172
2019	18229.464431346416
2020	17401.929928503178
2021	18042.312273178675
2022	18792.097406216784
2023	18884.380774440055