Year	constant 2021 international $
1990	3377.312296353248
1991	3302.437883479288
1992	3200.999070468179
1993	3088.15900605494
1994	3037.4440452003687
1995	3065.1173002363676
1996	3140.6036319100613
1997	3190.3405545887044
1998	3191.8457790118186
1999	3182.672254877678
2000	3206.3595079700976
2001	3255.9168780039745
2002	3360.9428590453963
2003	3405.1246650064945
2004	3533.845977667666
2005	3649.811043782792
2006	3769.9789016189316
2007	3895.0124034911883
2008	3989.4776615070355
2009	4000.3727358048427
2010	4124.708314282108
2011	4196.065803399786
2012	4245.122035391947
2013	4337.720234328905
2014	4431.2885080645365
2015	4446.167580115296
2016	4400.030614979692
2017	4403.662218444715
2018	4414.635560714488
2019	4421.650751105426
2020	4230.490072454635
2021	4301.588978175925
2022	4352.611623458976
2023	4374.320769045317