Year	US Dollars
1960	221479995.72754
1961	627530029.29688
1962	467649993.89648
1963	520690002.44141
1964	513049987.79297
1965	600809997.55859
1966	419880004.88281
1967	284839996.33789
1968	458049987.79297
1969	411470001.2207
1970	403720001.2207
1971	431869995.11719
1972	415940002.44141
1973	468320007.32422
1974	511179992.67578
1975	459190002.44141
1976	566190002.44141
1977	527739990.23438
1978	718969970.70312
1979	873969970.70312
1980	906349975.58594
1981	1102150024.41406
1982	1214250000
1983	993469970.70312
1984	1082109985.35156
1985	1110660034.17969
1986	942409973.14453
1987	1002559997.55859
1988	1362599975.58594
1989	1758829956.05469
1990	1767500000
1991	1281270019.53125
1992	1194150024.41406
1993	1255810058.59375
1994	886650024.41406
1995	838159973.14453
1996	731919982.91016
1997	602059997.55859
1998	568890014.64844
1999	414250000
2000	721809997.55859
2001	714799987.79297
2002	560400024.41406
2003	669989990.23438
2004	765719970.70312
2005	861659973.14453
2006	1056300048.82813
2007	1385689941.40625
2008	1388459960.9375
2009	1877880004.88281
2010	1711849975.58594
2011	2451340087.89063
2012	2670030029.29688
2013	3270459960.9375
2014	2616129882.8125
2015	2629409912.10938
2016	2344280029.29688
2017	2616629882.8125
2018	2530600097.65625
2019	3255699951.17188
2020	3989949951.17188
2021	2993800048.82813