Year	US Dollars
1960	91169998.16895
1961	68639999.38965
1962	78010002.13623
1963	123720001.2207
1964	72069999.69482
1965	245039993.28613
1966	124050003.05176
1967	103190002.44141
1968	75650001.52588
1969	92720001.2207
1970	84980003.35693
1971	100080001.83106
1972	62990001.67847
1973	102220001.2207
1974	66839996.33789
1975	84500000
1976	106959999.08447
1977	81959999.08447
1978	64790000.91553
1979	55970001.2207
1980	61880001.06812
1981	58200000.76294
1982	67029998.7793
1983	74569999.69482
1984	140880004.88281
1985	106720001.2207
1986	70220001.2207
1987	68379997.25342
1988	38669998.16895
1989	33950000.76294
1990	174520004.27246
1991	186860000.61035
1992	290440002.44141
1993	117879997.25342
1994	44900001.52588
1995	53740001.67847
1996	59709999.08447
1997	59659999.84741
1998	43830001.83105
1999	34950000.76294
2000	42439998.62671
2001	54369998.93188
2002	42849998.47412
2003	45900001.52588
2004	36340000.15259
2005	32970001.2207
2006	46790000.91553
2007	-101459999.08447
2008	36450000.76294
2009	64910003.66211
2010	114330001.83106
2011	94610000.61035
2012	49529998.7793
2013	9850000.38147
2014	-180279998.7793
2015	9760000.22888
2016	24850000.38147
2017	44040000.91553
2018	39549999.23706
2019	73110000.61035
2020	144770004.27246
2021	91839996.33789