Year	constant 2021 international $
1990	3572.4959333510833
1991	3499.8406331867122
1992	3806.8178814102534
1993	4069.580609207278
1994	4267.62826969315
1995	4515.162487916599
1996	4678.1326173020325
1997	4845.056230495902
1998	5036.928300020188
1999	5307.172973340979
2000	5333.745618448161
2001	5572.5280513959515
2002	5997.289458770214
2003	6305.585286286726
2004	6474.047121271488
2005	6783.882344041896
2006	7060.773069640153
2007	8097.420222107211
2008	8364.50636657112
2009	8903.349249238981
2010	9854.970881041147
2011	10556.750046515324
2012	10974.451675246142
2013	11037.92753485516
2014	11550.715879746851
2015	12194.866392701966
2016	13104.928096523323
2017	13450.495720205683
2018	13812.367110889105
2019	14505.213679685752
2020	12937.930273102216
2021	13423.428872547469
2022	14033.61828890688