Year	US Dollars
1960	-68540000.91553
1961	-113040000.91553
1962	48069999.69482
1963	63029998.7793
1964	137630004.88281
1965	365440002.44141
1966	279859985.35156
1967	278450012.20703
1968	206119995.11719
1969	198960006.71387
1970	275690002.44141
1971	224619995.11719
1972	209550003.05176
1973	380929992.67578
1974	287320007.32422
1975	248970001.2207
1976	270000000
1977	302950012.20703
1978	379160003.66211
1979	481200012.20703
1980	439559997.55859
1981	506589996.33789
1982	401109985.35156
1983	616520019.53125
1984	667640014.64844
1985	730400024.41406
1986	560140014.64844
1987	541380004.88281
1988	486179992.67578
1989	537599975.58594
1990	610659973.14453
1991	888640014.64844
1992	570109985.35156
1993	787659973.14453
1994	483269989.01367
1995	489779998.7793
1996	426290008.54492
1997	571479980.46875
1998	695229980.46875
1999	587570007.32422
2000	520400024.41406
2001	634669982.91016
2002	679609985.35156
2003	651710021.97266
2004	574570007.32422
2005	548809997.55859
2006	530969970.70312
2007	349220001.2207
2008	463440002.44141
2009	452119995.11719
2010	-184889999.38965
2011	558440002.44141
2012	391239990.23438
2013	357019989.01367
2014	322440002.44141
2015	356649993.89648
2016	345519989.01367
2017	-9140000.34332
2018	451679992.67578
2019	470239990.23438
2020	488529998.7793
2021	284369995.11719