Year	constant 2021 US$
1960	0
1961	0
1962	0
1963	0
1964	109999.999403954
1965	509999.99046325695
1966	560000.002384186
1967	569999.992847443
1968	379999.99523162795
1969	100000.00149011599
1970	90000.0035762787
1971	0
1972	70000.0002980232
1973	0
1974	189999.99761581398
1975	100000.00149011599
1976	170000.00178813902
1977	330000.013113022
1978	509999.99046325695
1979	419999.986886978
1980	699999.988079071
1981	540000.021457672
1982	180000.00715255702
1983	200000.00298023198
1984	230000.004172325
1985	3160000.08583069
1986	209999.993443489
1987	469999.998807907
1988	70000.0002980232
1989	200000.00298023198
1990	66839996.337890595
1991	-7449999.80926514
1992	-7039999.96185303
1993	-6920000.07629395
1994	-17250000
1995	-2460000.03814697
1996	-5070000.17166138
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0
2022	0