Year	US Dollars
1960	1745839965.82031
1961	1757619995.11719
1962	2616899902.34375
1963	3370070068.35938
1964	3502709960.9375
1965	3430090087.89063
1966	2528219970.70313
1967	3162070068.35938
1968	2483310058.59375
1969	2013719970.70313
1970	2534800048.82813
1971	2458719970.70313
1972	1629030029.29688
1973	1337319946.28906
1974	1956689941.40625
1975	2742050048.82813
1976	3644780029.29688
1977	1969380004.88281
1978	1829290039.0625
1979	1782069946.28906
1980	2714729980.46875
1981	1917189941.40625
1982	2120489990.23438
1983	1605800048.82813
1984	1554099975.58594
1985	1631630004.88281
1986	1630790039.0625
1987	1172739990.23438
1988	1902030029.29688
1989	1981630004.88281
1990	1371819946.28906
1991	1665859985.35156
1992	1134280029.29688
1993	1110410034.17969
1994	1466329956.05469
1995	495480010.98633
1996	759130004.88281
1997	895960021.97266
1998	1007799987.79297
1999	797900024.41406
2000	675659973.14453
2001	2549479980.46875
2002	2716800048.82813
2003	1269969970.70313
2004	1533109985.35156
2005	1661589965.82031
2006	2295699951.17188
2007	2080620117.1875
2008	1044040039.0625
2009	2629860107.42188
2010	3017810058.59375
2011	3580189941.40625
2012	1979890014.64844
2013	2151120117.1875
2014	3514129882.8125
2015	3970260009.76563
2016	3164600097.65625
2017	2505159912.10938
2018	1408650024.41406
2019	2072129882.8125
2020	2591290039.0625
2021	2550840087.89063