Year	US Dollars
1961	103650001.52588
1962	117980003.35693
1963	24059999.46594
1964	27979999.54224
1965	76819999.69482
1966	72940002.44141
1967	63189998.62671
1968	117910003.66211
1969	92589996.33789
1970	63159999.84741
1971	102800003.05176
1972	91660003.66211
1973	73470001.2207
1974	94029998.7793
1975	75839996.33789
1976	70349998.47412
1977	81449996.94824
1978	356790008.54492
1979	300679992.67578
1980	257950012.20703
1981	337359985.35156
1982	385309997.55859
1983	397209991.45508
1984	384570007.32422
1985	370799987.79297
1986	360170013.42773
1987	311769989.01367
1988	328880004.88281
1989	448059997.55859
1990	425869995.11719
1991	240789993.28613
1992	191960006.71387
1993	168929992.67578
1994	183179992.67578
1995	153259994.50684
1996	77000000
1997	101419998.16894
1998	29079999.92371
1999	-21420000.07629
2000	35110000.61035
2001	100930000.30518
2002	46139999.38965
2003	16639999.38965
2004	104489997.86377
2005	51490001.67847
2006	44060001.37329
2007	28540000.91553
2008	81989997.86377
2009	146830001.83105
2010	137960006.71387
2011	41290000.91553
2012	30850000.38147
2013	67919998.16895
2014	89230003.35693
2015	61259998.32153
2016	29389999.38965
2017	65059997.55859
2018	101220001.2207
2019	129309997.55859
2020	66739997.86377
2021	54729999.54224