Year	constant 2021 international $
1990	12347.33897224493
1991	12498.068992403187
1992	12579.942859871364
1993	12937.021788113509
1994	13390.899838567155
1995	13227.02183819774
1996	13507.787626118003
1997	14000.455002102486
1998	14175.305549961784
1999	14019.997608280846
2000	14308.555041028445
2001	14130.607193581181
2002	13996.397952361369
2003	14147.028968996894
2004	14698.339407335901
2005	15083.854644013472
2006	15676.812620498491
2007	16316.840143908397
2008	16734.95439692071
2009	16153.953909350552
2010	17052.02194439542
2011	17619.643708066254
2012	17847.216743881447
2013	18156.61562464917
2014	18223.463418824707
2015	18105.84347079176
2016	17861.079478399868
2017	18036.047624738952
2018	18129.773906421757
2019	18076.204141128124
2020	16744.533805472453
2021	17792.028166266584
2022	18373.55888655166
2023	18631.247453967175