Year	current US$
1990	-250565667.987561
1991	-120586775.407643
1992	-169145936.850714
1993	-216844699.657668
1994	-51255165.0401334
1995	-67816437.4711133
1996	21179556.2385464
1997	-40217774.3671247
1998	132501805.660483
1999	64352993.4380308
2000	108398445.215915
2001	200915871.263901
2002	224841040.591731
2003	272186289.987404
2004	300550172.585287
2005	719010528.582318
2006	780418649.073368
2007	843904186.609727
2008	1342030175.30145
2009	1051136778.43367
2010	1782559521.44435
2011	1802567192.16952
2012	1998886376.03191
2013	2150519899.60683
2014	2445160195.64381
2015	2085562624.94964
2016	1793762292.36499
2017	1725510165.72392
2018	2605726718.7746
2019	2755311488.01289
2020	1268140235.11406