Year	current US$
1960	-8000000
1961	53000000
1962	43000000
1963	67000000
1964	36000000
1965	33750000
1966	76440002.44140631
1967	83139999.3896484
1968	106709999.084473
1969	94000000
1970	109000000
1971	81000000
1972	63000000
1973	92000000
1974	46000000
1975	27000000
1976	19000000
1977	-1000000
1978	12000000
1979	-8000000
1980	-14000000
1981	-20000000
1982	-21000000
1983	-22000000
1984	-22000000
1985	-19000000
1986	-27000000
1987	-18000000
1988	-19000000
1989	-25000000
1990	-19000000
1991	-3000000
1992	34000000
1994	-33000000
1995	21000000
1996	17000000
1997	23000000
1998	47990001.6784668
1999	183820007.32421902
2000	105139999.38964799
2001	274739990.234375
2002	306260009.765625
2003	670849975.585938
2004	375559997.558594
2005	448940002.441406
2006	719750000
2007	403500000
2008	636090026.855469
2009	652340026.855469
2010	197600006.10351598
2011	495739990.234375
2012	323470001.220703
2013	293480010.986328
2014	322160003.66210896
2015	381489990.234375
2016	293429992.675781
2017	304529998.779297
2018	339209991.455078
2019	433250000
2020	558760009.765625
2021	673179992.675781
2022	568799987.792969