Year	US Dollars
1990	500000000
1991	0
1992	370370370.37037
1993	-2561983471.07438
1994	-1916750587.44545
1995	-613102225.90521
1996	-601384615.38462
1997	-818941611.46202
1998	-739095560.18037
1999	-294775266.25083
2000	-405990274.65164
2001	-438561151.07914
2002	-546850362.92574
2003	-682642613.35934
2004	-1472870370.37037
2005	214856081.70844
2006	-1541911421.91142
2007	-2837884436.1603
2008	-4693352059.92509
2009	-5536484067.31114
2010	-7537462235.64955
2011	-644462311.55778
2012	2935168525.84863
2013	-2378231981.98197
2014	-606406494.52271
2015	60241115.15761
2016	-90973059.91154
2017	-189980851.8346