Year	current US$
1993	82327843.1095361
1994	63939933.2941518
1995	77392070.3080238
1996	31451104.2177588
1997	53070421.1629562
1998	72590512.9180723
1999	73551798.2301638
2000	76036453.5035727
2001	22682255.9732858
2002	12768315.6450878
2003	12127854.3119307
2004	27748559.7046515
2005	-1006952.13137273
2006	8548104.96269396
2007	-34468876.6422902
2008	10245051.3914315
2009	167645542.666855
2010	35967653.4025664
2011	4416085.58211166
2012	-35262597.9417639
2013	-33699253.8322636
2014	-90247658.6800245
2015	-45956834.3529803
2016	-14961800.6778521
2017	65948544.7786246
2018	192623584.990554
2019	258896791.733406
2020	40296076.3925671