Year	US Dollars
1960	97110000.61035
1961	91959999.08447
1962	66050003.05176
1963	57520000.45776
1964	22770000.45776
1965	60680000.30518
1966	57520000.45776
1967	57790000.91553
1968	127139999.38965
1969	56529998.7793
1970	121910003.66211
1971	35409999.84741
1972	78779998.7793
1973	58020000.45776
1974	591229980.46875
1975	54990001.67847
1976	145910003.66211
1977	454420013.42773
1978	680969970.70312
1979	320940002.44141
1980	697250000
1981	1124380004.88281
1982	474059997.55859
1983	319390014.64844
1984	193759994.50684
1985	208750000
1986	132570007.32422
1987	187059997.55859
1988	250179992.67578
1989	209860000.61035
1990	432850006.10352
1991	183970001.2207
1992	152740005.49316
1993	202830001.83105
1994	316200012.20703
1995	234919998.16895
1996	302329986.57227
1997	360299987.79297
1998	479899993.89648
1999	275540008.54492
2000	308200012.20703
2001	301109985.35156
2002	297730010.98633
2003	681260009.76562
2004	310989990.23438
2005	265429992.67578
2006	895049987.79297
2007	999960021.97266
2008	1028359985.35156
2009	583190002.44141
2010	440190002.44141
2011	452890014.64844
2012	732909973.14453
2013	586739990.23438
2014	778309997.55859
2015	1019090026.85547
2016	1215540039.0625
2017	1368569946.28906
2018	1423510009.76563
2019	1268750000
2020	1421439941.40625
2021	1306989990.23438