Year	current US$
1990	68100906.3272883
1991	90177144.7041864
1992	94039506.6622103
1993	144847502.759766
1994	165034339.079184
1995	203318978.294871
1996	224752309.269115
1997	267049900.607514
1998	278357376.928937
1999	302477167.926451
2000	290860448.412751
2001	327781543.067566
2002	339372514.011681
2003	365834287.730396
2004	394476334.866689
2005	402040750.895208
2006	398021081.507684
2007	387328850.921764
2008	500523834.785913
2009	604822735.427996
2010	596142157.956658
2011	631765247.153812
2012	729214017.905987
2013	751241964.401172
2014	846819524.622149
2015	939213847.895698
2016	998700305.444956
2017	1097069150.08711
2018	1088777377.29192
2019	1139770866.8037
2020	954729450.089029
2021	976007104.511304