Year	US Dollars
1960	-35077283.32814
1961	6838126.35338
1962	-64942528.73563
1963	-114738358.1373
1964	-55240384.61538
1965	-52932692.30769
1966	-17500000
1967	-115576923.07692
1968	-227596153.84615
1969	-267740384.61538
1970	-309086538.46154
1971	-208269230.76923
1972	-81346153.84615
1973	-156454352.02717
1974	-324268347.14922
1975	-686382751.12492
1976	-419507747.51104
1977	-1071906510.2622
1978	-1014894694.6563
1979	-1840941480.68701
1980	-2024086265.1638
1981	-2186211068.54137
1982	-626605971.27838
1983	-2867900574.34533
1984	-1783293992.23331
1985	-1061199091.27395
1986	876044245.19657
1987	283017400.90503
1988	-856886442.97637
1989	-1852423935.88048
1990	-6416524984.8547
1991	-6427020629.54602
1992	-4468919413.7031
1993	-5299333322.80131
1994	-6989065606.36183
1995	-11327262072.9515
1996	-11416463123.503
1997	2136059150.05277
1998	17772187217.4161
1999	15416634711.7579
2000	10594887290.0244
2001	7498576473.20956
2002	8490180423.22993
2003	9673300453.66232
2004	7835360396.19714
2005	-1984878207.66231
2006	7237606250.98992
2007	20697052569.3692
2008	6981025596.38343
2009	27066190667.8567
2010	19517416373.9479
2011	7543987380.17231
2012	4181275355.41822
2013	11890223263.6855
2014	27609160154.9271
2015	46264917060.1237
2016	59963452363.41379