Year	current US$
1990	137826530.41672
1991	193062159.819003
1992	284850323.605214
1993	442960493.067308
1994	378650024.790898
1995	190816393.122667
1996	50038264.5458843
1997	213954430.399422
1998	16873059.2370595
1999	76719725.7091664
2000	57973944.7957065
2001	27584830.3762781
2002	-79343371.4529593
2003	13933827.3085884
2004	-118086793.335014
2005	-309242380.329894
2006	-645128873.938771
2007	-1235817392.54024
2008	-849349459.183178
2009	-1412939138.92356
2010	-654836176.611303
2011	-909520111.896083
2012	-931297114.313785
2013	-2087056326.99043
2014	-1989247326.11433
2015	-2292557720.50253
2016	-1875015929.51927
2017	-920920218.622962
2018	-1152627640.02182
2019	-1103748597.1018
2020	-1845345001.70121
2021	-2315136539.95552