Year	US Dollars
1960	29079999.92371
1961	48049999.23706
1962	61650001.52588
1963	54450000.76294
1964	76319999.69482
1965	97680000.30518
1966	80000000
1967	80430000.30518
1968	70360000.61035
1969	77849998.47412
1970	66870002.74658
1971	75800003.05176
1972	79089996.33789
1973	74900001.52588
1974	68949996.94824
1975	80269996.64307
1976	50680000.30518
1977	56599998.47412
1978	91650001.52588
1979	76190002.44141
1980	56650001.52588
1981	77190002.44141
1982	154320007.32422
1983	505980010.98633
1984	448429992.67578
1985	566500000
1986	376809997.55859
1987	436260009.76562
1988	332769989.01367
1989	404880004.88281
1990	350390014.64844
1991	267859985.35156
1992	204110000.61035
1993	168539993.28613
1994	115139999.38965
1995	57849998.47412
1996	-3420000.07629
1997	8489999.77112
1998	42959999.08447
1999	8170000.07629
2000	47610000.61035
2001	32500000
2002	25750000
2003	48430000.30518
2004	30360000.61035
2005	34229999.54224
2006	33580001.83105
2007	65400001.52588
2008	71160003.66211
2009	103129997.25342
2010	91139999.38965
2011	33849998.47412
2012	30079999.92371
2013	29840000.15259
2014	52490001.67847
2015	124500000
2016	108209999.08447
2017	105040000.91553
2018	101430000.30518
2019	57360000.61035
2020	208360000.61035
2021	73400001.52588