Year	current US$
1960	17260000.2288818
1961	123830001.831055
1962	134910003.66210902
1963	132250000
1964	111489997.86377
1965	105580001.831055
1966	123470001.22070299
1967	92919998.1689453
1968	75860000.6103516
1969	74620002.746582
1970	56669998.1689453
1971	27379999.1607666
1972	38110000.6103516
1973	39779998.779296905
1974	15180000.3051758
1975	113089996.337891
1976	10420000.076293899
1977	10720000.2670288
1978	3759999.99046326
1979	-29889999.3896484
1980	-7550000.19073486
1981	550000.011920929
1982	-819999.992847443
1983	8529999.73297119
1984	11550000.1907349
1985	49369998.9318848
1986	3730000.01907349
1987	28879999.1607666
1988	51930000.3051758
1989	68720001.2207031
1990	109139999.38964799
1991	124980003.35693401
1992	136619995.117188
1993	178720001.220703
1994	155199996.94824198
1995	160740005.493164
1996	196600006.10351598
1997	130729995.727539
1998	107559997.558594
1999	71180000.3051758
2000	50540000.9155273
2001	55860000.6103516
2002	-7070000.17166138
2003	80330001.8310547
2004	54110000.6103516
2005	170750000
2006	98889999.3896484
2007	106949996.94824201
2008	103620002.746582
2009	76650001.5258789
2010	181910003.66210902
2011	161199996.94824198
2012	128080001.831055
2013	80559997.55859381
2014	245580001.831055
2015	54330001.8310547
2016	178440002.44140598
2017	70309997.55859381
2021	1350000.02384186