Year	constant 2021 international $
1990	3377.312296353248
1991	3302.437883479287
1992	3200.999070468178
1993	3088.159006054939
1994	3037.4440452003687
1995	3065.117300236369
1996	3140.6036319100617
1997	3190.3405545887053
1998	3191.8457790118186
1999	3182.672254877678
2000	3206.3595079700976
2001	3255.9168780039736
2002	3360.9428590453963
2003	3405.1246650064954
2004	3533.8459776676673
2005	3649.8110437827904
2006	3769.9789016189334
2007	3895.012403491189
2008	3989.4776615070346
2009	4000.372735804842
2010	4124.708314282109
2011	4196.065803399785
2012	4245.122035391947
2013	4337.7202343289055
2014	4431.2885080645365
2015	4446.167580115296
2016	4400.030614979691
2017	4403.662218444716
2018	4414.635560714488
2019	4421.650751105426
2020	4230.490072454637
2021	4301.588978175925
2022	4352.611623458975
2023	4374.32076904532