Year	current US$
1990	5083211600.57547
1991	5294064475.31821
1992	5711627415.32288
1993	5917995018.36974
1994	6395776214.39435
1995	6849403625.94114
1996	7349018497.8435
1997	7894279826.88624
1998	8299192666.7515
1999	8773967990.76797
2000	9544751741.08517
2001	9831893744.75372
2002	10567100227.0874
2003	11442354781.6384
2004	11834731473.1405
2005	12773867851.355
2006	13255844295.5124
2007	14721329355.4014
2008	14773369775.1426
2009	14397543303.8997
2010	15346802334.5667
2011	16384434075.8935
2012	16970771895.8714
2013	17961923144.3785
2014	18912190520.9505
2015	19427574373.8512
2016	19996631385.3973
2017	21255902729.0931
2018	22727199612.2896
2019	23660338519.5191
2020	22934417748.7295
2021	25295279065.9742