Year	US Dollars
1960	5409999.84741
1961	56139999.38965
1962	41979999.54224
1963	56139999.38965
1964	19719999.31335
1965	18549999.23706
1966	36169998.16895
1967	42299999.23706
1968	87569999.69482
1969	44380001.06812
1970	42959999.08447
1971	58990001.67847
1972	58299999.23706
1973	68680000.30518
1974	113669998.16894
1975	106339996.33789
1976	62900001.52588
1977	76209999.08447
1978	126910003.66211
1979	80639999.38965
1980	74860000.61035
1981	138009994.50684
1982	122089996.33789
1983	105250000
1984	90620002.74658
1985	70830001.83105
1986	112199996.94824
1987	112150001.52588
1988	96190002.44141
1989	97949996.94824
1990	128100006.10352
1991	96019996.64307
1992	63029998.7793
1993	38189998.62671
1994	22229999.54224
1995	29770000.45776
1996	27659999.84741
1997	59330001.83105
1998	56479999.54224
1999	60619998.93188
2000	32130001.06812
2001	32819999.69482
2002	36930000.30518
2003	-18389999.38965
2004	37569999.69482
2005	37319999.69482
2006	20729999.54224
2007	67089996.33789
2008	98980003.35693
2009	147220001.2207
2010	121120002.74658
2011	169619995.11719
2012	171580001.83105
2013	135850006.10352
2014	40069999.69482
2015	85360000.61035
2016	45979999.54224
2017	15020000.45776
2018	69540000.91553
2019	22540000.91553
2020	334989990.23438
2021	302470001.2207