Year	current US$
1990	-3248652.45123211
1991	60423160.3216619
1992	-208607656.920417
1993	-180969336.618795
1994	-207262367.137188
1995	-223005712.449866
1996	-188504434.091316
1997	-303084047.03561
1998	-112210873.391507
1999	-222769946.641924
2000	-137886174.787292
2001	-171451809.929547
2002	-315308234.744815
2003	-356094491.169348
2004	-324024143.183426
2005	-444452977.268158
2006	-379617806.829862
2007	28877836.4906181
2008	-181296800.863931
2009	-320785636.945527
2010	-180030827.643239
2011	-709537747.192534
2012	-1245255990.49321
2013	-537113698.756372
2014	-583039691.831976
2015	-1046930816.40605
2016	-1271248226.40527
2017	-1027154899.81931