Year	current US$
1990	305082342.401121
1991	284698127.71886
1992	265982237.540996
1993	684859356.402507
1994	787269493.23629
1995	807929963.053817
1996	725208935.527233
1997	978394756.860881
1998	1151786258.02628
1999	1360100380.91946
2000	1096447868.73794
2001	1059625305.07314
2002	1091607293.6444
2003	1177870699.38854
2004	1373250233.41624
2005	1884027476.52154
2006	2196596965.94468
2007	2410491736.07049
2008	2437360706.22681
2009	2194285693.73311
2010	2009410861.77413
2011	2896468607.76677
2012	2562020437.62125
2013	1970364890.57382
2014	2491231834.60239
2015	3759395480.60949
2016	3974103271.72825
2017	4995561694.85227
2018	4322747333.87851
2019	4745235081.4262
2020	5054408439.60294
2021	5066634443.77655