Year	current US$
1990	-410393794.4647811
1991	-416888327.154306
1992	-525448530.71343046
1993	-484132326.33160794
1994	-451725915.8673198
1995	-392742458.67160857
1996	-447298822.1503229
1997	-385981877.895671
1998	-722378551.6334519
1999	-712278239.6235373
2000	-506334419.6971544
2001	-684832737.1323651
2002	-748793643.6417555
2003	-1015683609.741214
2004	-860315416.735686
2005	-1183838294.421462
2006	-1412180278.77874
2007	-1535101217.5432289
2008	-2793644066.642453
2009	-2200120176.566444
2010	-2600436243.779702
2011	-2759993426.770736
2012	-2727388878.5871115
2013	-2784133385.7153225
2014	-2316888847.5489407
2015	-2089170094.1321764
2016	-1701172586.3418505
2017	-1551568912.9119196