Year	US Dollars
1960	91519996.64307
1961	158470001.2207
1962	221070007.32422
1963	320970001.2207
1964	248710006.71387
1965	230130004.88281
1966	192559997.55859
1967	186149993.89648
1968	245800003.05176
1969	194360000.61035
1970	174360000.61035
1971	174630004.88281
1972	238699996.94824
1973	112639999.38965
1974	228410003.66211
1975	178820007.32422
1976	201179992.67578
1977	230210006.71387
1978	334910003.66211
1979	324690002.44141
1980	334320007.32422
1981	303920013.42773
1982	267670013.42773
1983	370739990.23438
1984	332079986.57227
1985	396399993.89648
1986	526770019.53125
1987	507690002.44141
1988	703299987.79297
1989	808559997.55859
1990	737140014.64844
1991	709619995.11719
1992	917210021.97266
1993	785489990.23438
1994	731510009.76562
1995	837400024.41406
1996	962280029.29688
1997	882409973.14453
1998	785820007.32422
1999	732349975.58594
2000	640429992.67578
2001	1040910034.17969
2002	890200012.20703
2003	994979980.46875
2004	829020019.53125
2005	637309997.55859
2006	914559997.55859
2007	479160003.66211
2008	576950012.20703
2009	604289978.02734
2010	549219970.70312
2011	504489990.23438
2012	639729980.46875
2013	664909973.14453
2014	641309997.55859
2015	842210021.97266
2016	745760009.76562
2017	996890014.64844
2018	731059997.55859
2019	730950012.20703
2020	338540008.54492
2021	479230010.98633