Year	US Dollars
1960	670000.01669
1961	17790000.91553
1962	85300003.05176
1963	57729999.54224
1964	139899993.89648
1965	170410003.66211
1966	188970001.2207
1967	124400001.52588
1968	204039993.28613
1969	153740005.49316
1970	146419998.16895
1971	181550003.05176
1972	208839996.33789
1973	349519989.01367
1974	507209991.45508
1975	540710021.97266
1976	313750000
1977	367660003.66211
1978	447570007.32422
1979	479480010.98633
1980	626140014.64844
1981	569299987.79297
1982	535380004.88281
1983	560070007.32422
1984	892780029.29688
1985	1015739990.23438
1986	803940002.44141
1987	661179992.67578
1988	749340026.85547
1989	772900024.41406
1990	729530029.29688
1991	673260009.76562
1992	605320007.32422
1993	542469970.70312
1994	611219970.70312
1995	661020019.53125
1996	614200012.20703
1997	598659973.14453
1998	489470001.2207
1999	504760009.76562
2000	451230010.98633
2001	551500000
2002	629200012.20703
2003	719090026.85547
2004	689869995.11719
2005	830729980.46875
2006	964380004.88281
2007	1025459960.9375
2008	920469970.70312
2009	984380004.88281
2010	1098689941.40625
2011	1216359985.35156
2012	1002429992.67578
2013	1330839965.82031
2014	1173250000
2015	1290380004.88281
2016	1295630004.88281
2017	1426349975.58594
2018	1562630004.88281
2019	1863780029.29688
2020	1565650024.41406
2021	1331109985.35156