Year	US Dollars
1960	136889999.38965
1961	131279998.7793
1962	158639999.38965
1963	184839996.33789
1964	201130004.88281
1965	268160003.66211
1966	310179992.67578
1967	206080001.83105
1968	54770000.45776
1969	32090000.15259
1970	111339996.33789
1971	197009994.50684
1972	277260009.76562
1973	297399993.89648
1974	769929992.67578
1975	936469970.70312
1976	1732660034.17969
1977	1487430053.71094
1978	1141380004.88281
1979	920010009.76562
1980	1348479980.46875
1981	1235569946.28906
1982	1517300048.82813
1983	1089640014.64844
1984	1428089965.82031
1985	1087619995.11719
1986	717030029.29688
1987	879150024.41406
1988	514219970.70312
1989	616809997.55859
1990	688900024.41406
1991	410529998.7793
1992	344950012.20703
1993	434529998.7793
1994	225190002.44141
1995	204770004.27246
1996	311700012.20703
1997	482730010.98633
1998	536320007.32422
1999	631090026.85547
2000	461600006.10352
2001	568130004.88281
2002	320720001.2207
2003	308160003.66211
2004	312070007.32422
2005	334399993.89648
2006	320589996.33789
2007	245539993.28613
2008	415649993.89648
2009	557380004.88281
2010	670809997.55859
2011	461619995.11719
2012	708869995.11719
2013	1022020019.53125
2014	1118099975.58594
2015	1890219970.70313
2016	2464639892.57813
2017	3409969970.70313
2018	8058700195.3125
2019	3864260009.76563
2020	2547580078.125
2021	3657649902.34375