Year	US Dollars
1960	1950000.04768
1961	1490000.00954
1962	300000.01192
1963	-1250000
1964	3289999.96185
1965	4079999.92371
1966	5019999.98093
1967	5079999.92371
1968	4340000.15259
1969	8369999.88556
1970	11399999.61853
1971	14289999.96185
1972	18469999.31335
1973	22389999.38965
1974	54990001.67847
1975	62450000.76294
1976	145919998.16895
1977	133759994.50684
1978	136160003.66211
1979	114220001.2207
1980	103980003.35693
1981	66330001.83105
1982	86860000.61035
1983	91180000.30518
1984	92779998.7793
1985	105239997.86377
1986	85569999.69482
1987	87839996.33789
1988	101889999.38965
1989	100120002.74658
1990	75739997.86377
1991	52099998.47412
1992	33130001.06812
1993	64639999.38965
1994	66339996.33789
1995	82819999.69482
1996	75029998.7793
1997	93410003.66211
1998	113760002.13623
1999	87910003.66211
2000	72800003.05176
2001	88019996.64307
2002	94970001.2207
2003	99519996.64307
2004	117150001.52588
2005	102690002.44141
2006	92699996.94824
2007	99760002.13623
2008	118069999.69482
2009	110069999.69482
2010	129800003.05176
2011	81319999.69482
2012	79419998.16895
2013	93400001.52588
2014	206399993.89648
2015	591080017.08984
2016	2930830078.125
2017	727020019.53125
2018	718940002.44141
2019	466739990.23438
2020	529099975.58594
2021	144369995.11719