Year	US Dollars
1960	349999.99404
1961	10420000.07629
1962	22030000.68665
1963	15989999.77112
1964	95970001.2207
1965	71470001.2207
1966	154190002.44141
1967	91220001.2207
1968	158669998.16895
1969	81220001.2207
1970	50169998.16895
1971	88550003.05176
1972	72699996.94824
1973	145059997.55859
1974	421070007.32422
1975	314179992.67578
1976	744330017.08984
1977	592320007.32422
1978	701419982.91016
1979	447970001.2207
1980	410290008.54492
1981	549849975.58594
1982	472850006.10352
1983	455679992.67578
1984	451850006.10352
1985	537520019.53125
1986	480779998.7793
1987	350170013.42773
1988	312350006.10352
1989	438390014.64844
1990	356399993.89648
1991	316920013.42773
1992	270600006.10352
1993	455549987.79297
1994	351079986.57227
1995	263380004.88281
1996	336359985.35156
1997	321260009.76562
1998	227830001.83105
1999	306589996.33789
2000	332049987.79297
2001	440940002.44141
2002	547580017.08984
2003	329950012.20703
2004	224970001.2207
2005	214729995.72754
2006	238690002.44141
2007	350230010.98633
2008	437220001.2207
2009	367670013.42773
2010	368380004.88281
2011	353690002.44141
2012	396899993.89648
2013	280970001.2207
2014	248550003.05176
2015	350929992.67578
2016	329670013.42773
2017	307540008.54492
2018	451640014.64844
2019	408130004.88281
2020	644900024.41406
2021	401190002.44141