Year	US Dollars
1960	37360000.61035
1961	50020000.45776
1962	40970001.2207
1963	50169998.16895
1964	83080001.83105
1965	75879997.25342
1966	62819999.69482
1967	54939998.62671
1968	100629997.25342
1969	70440002.44141
1970	77809997.55859
1971	62409999.84741
1972	82080001.83105
1973	63950000.76294
1974	81970001.2207
1975	142970001.2207
1976	108040000.91553
1977	110300003.05176
1978	147419998.16895
1979	190539993.28613
1980	212449996.94824
1981	219410003.66211
1982	300339996.33789
1983	353739990.23438
1984	512799987.79297
1985	533890014.64844
1986	537270019.53125
1987	470070007.32422
1988	512210021.97266
1989	422600006.10352
1990	660890014.64844
1991	460059997.55859
1992	447940002.44141
1993	413309997.55859
1994	349390014.64844
1995	456519989.01367
1996	292709991.45508
1997	375309997.55859
1998	404730010.98633
1999	1049099975.58594
2000	583659973.14453
2001	819530029.29688
2002	531520019.53125
2003	405359985.35156
2004	637099975.58594
2005	728809997.55859
2006	574849975.58594
2007	415809997.55859
2008	452839996.33789
2009	429640014.64844
2010	478450012.20703
2011	341010009.76562
2012	548409973.14453
2013	606719970.70312
2014	587869995.11719
2015	578969970.70312
2016	442070007.32422
2017	463380004.88281
2018	672229980.46875
2019	462519989.01367
2020	1183010009.76563
2021	585640014.64844