Year	US Dollars
1965	-4080907.9516
1966	-22035679.77488
1967	-18251640.41808
1968	-26428575.146
1969	6042041.72633
1970	17862999.06164
1971	-51084947.25645
1972	-81476656.52321
1973	-58098543.92482
1974	59503763.28791
1975	-78676278.51229
1976	-145277381.56008
1977	-92433859.53362
1978	-196983694.7775
1979	-416323068.95592
1980	50781980.8322
1981	-499957038.96475
1982	315125679.41309
1983	80758648.30282
1984	193889310.30593
1985	152612458.83031
1986	59152861.83982
1987	-483706406.98442
1988	8912820.94176
1989	327249095.70884
1990	319981524.79403
1991	666355596.47153
1992	254303246.44893
1993	214366669.65624
1994	227032203.0234
1995	291639800.15067
1996	8734513.75577
1997	-8952490.82477
1998	8530919.50069
1999	-30257921.41952
2000	97163768.09172
2001	-253716340.95617
2002	-376214806.2191
2003	-696295473.6947
2004	-264280937.85776
2005	-318078003.20057
2006	-129665870.51466
2007	-161559281.80295
2008	-1020528341.2233
2009	-1292047227.96913
2010	-1249561356.5742
2011	-1488017469.3626
2012	-1208041649.50303
2013	-1445945672.41519
2014	-1813065946.62379
2015	-1653978911.13273
2016	-1556032040.47218
2017	-1049656705.28467