Year	US Dollars
1960	60169998.16895
1961	74470001.2207
1962	62139999.38965
1963	115019996.64307
1964	133389999.38965
1965	119500000
1966	103239997.86377
1967	92459999.08447
1968	70230003.35693
1969	71739997.86377
1970	134500000
1971	135199996.94824
1972	157539993.28613
1973	158309997.55859
1974	132350006.10352
1975	156509994.50684
1976	162169998.16895
1977	248009994.50684
1978	206160003.66211
1979	329440002.44141
1980	357679992.67578
1981	397910003.66211
1982	442980010.98633
1983	439089996.33789
1984	401850006.10352
1985	470339996.33789
1986	520760009.76562
1987	556780029.29688
1988	596780029.29688
1989	678200012.20703
1990	528309997.55859
1991	509720001.2207
1992	512590026.85547
1993	392089996.33789
1994	483720001.2207
1995	428760009.76562
1996	403910003.66211
1997	414630004.88281
1998	425779998.7793
1999	393829986.57227
2000	423420013.42773
2001	508700012.20703
2002	462649993.89648
2003	568989990.23438
2004	491049987.79297
2005	456399993.89648
2006	494160003.66211
2007	562109985.35156
2008	595830017.08984
2009	709830017.08984
2010	754820007.32422
2011	691320007.32422
2012	728359985.35156
2013	831640014.64844
2014	831780029.29688
2015	1285729980.46875
2016	1134680053.71094
2017	1336380004.88281
2018	1468089965.82031
2019	1368989990.23438
2020	1758849975.58594
2021	1481750000