Year	US Dollars
1960	334290008.54492
1961	294779998.7793
1962	263279998.7793
1963	146770004.27246
1964	344290008.54492
1965	589390014.64844
1966	498390014.64844
1967	506989990.23438
1968	497209991.45508
1969	546849975.58594
1970	707049987.79297
1971	606179992.67578
1972	439079986.57227
1973	368260009.76562
1974	299279998.7793
1975	308589996.33789
1976	183399993.89648
1977	139839996.33789
1978	114779998.7793
1979	65769996.64307
1980	77360000.61035
1981	99540000.91553
1982	88139999.38965
1983	115419998.16894
1984	88019996.64307
1985	85239997.86377
1986	118339996.33789
1987	114930000.30518
1988	172860000.61035
1989	512099975.58594
1990	370429992.67578
1991	375049987.79297
1992	349890014.64844
1993	424079986.57227
1994	269079986.57227
1995	254380004.88281
1996	243399993.89648
1997	273709991.45508
1998	284019989.01367
1999	207770004.27246
2000	248960006.71387
2001	250570007.32422
2002	427540008.54492
2003	400579986.57227
2004	675270019.53125
2005	6914959960.9375
2006	12152080078.125
2007	1989689941.40625
2008	1323489990.23438
2009	1710739990.23438
2010	2134280029.29688
2011	1789609985.35156
2012	1910189941.40625
2013	2489699951.17188
2014	2407229980.46875
2015	2563760009.76563
2016	2677169921.875
2017	3550010009.76563
2018	3350110107.42188
2019	3367209960.9375
2020	3375530029.29688
2021	3177620117.1875