Year	US Dollars
1984	-37797203.13332
1985	-43519825.56184
1986	-8912475
1987	-2074975
1988	-60287525
1989	-64875012.5
1990	-175000000
1991	-232016659.72222
1992	-546433224.26948
1993	-575597170.3613
1994	-548018912.88932
1995	-534278929.85248
1996	-690449176.97698
1997	-576862766.1895
1998	-644098785.39296
1999	-559893963.07024
2000	-733173851.4527
2001	-835185159.40415
2002	-1097082884.0404
2003	-1421150768.31872
2004	-1637941143.81332
2005	-2010850072.54409
2006	-2121099778.39708
2007	-2857595941.07571
2008	-3458244034.77697
2009	-2964493920.17739
2010	-2455107161.68734
2011	-2930809257.14852
2012	-2295816594.96823
2013	-2304977727.55792
2014	-2510968987.25057
2015	-1966095801.2334
2016	-1999123876.98172
2017	-1960013333.36692