Year	US Dollars
1960	9789999.96185
1961	9350000.38147
1962	58180000.30518
1963	52560001.37329
1964	197679992.67578
1965	99069999.69482
1966	243720001.2207
1967	520010009.76562
1968	265799987.79297
1969	161529998.7793
1970	93519996.64307
1971	141029998.7793
1972	124769996.64307
1973	223360000.61035
1974	251699996.94824
1975	322619995.11719
1976	230740005.49316
1977	353790008.54492
1978	529880004.88281
1979	717299987.79297
1980	726510009.76562
1981	555900024.41406
1982	786349975.58594
1983	542150024.41406
1984	621429992.67578
1985	829510009.76562
1986	938239990.23438
1987	764150024.41406
1988	767440002.44141
1989	599479980.46875
1990	696289978.02734
1991	1229060058.59375
1992	1390250000
1993	1232359985.35156
1994	959580017.08984
1995	2470810058.59375
1996	771770019.53125
1997	838840026.85547
1998	487359985.35156
1999	857989990.23438
2000	1182209960.9375
2001	857809997.55859
2002	1175699951.17188
2003	977150024.41406
2004	1273689941.40625
2005	1295359985.35156
2006	1642420043.94531
2007	1039709960.9375
2008	1087750000
2009	1285359985.35156
2010	937659973.14453
2011	996359985.35156
2012	950609985.35156
2013	1109979980.46875
2014	973479980.46875
2015	847890014.64844
2016	1034750000
2017	1094069946.28906
2018	1017090026.85547
2019	971859985.35156
2020	1015960021.97266
2021	1015359985.35156