Year	current US$
1960	15000000
1961	30000000
1962	13000000
1963	32000000
1964	37000000
1965	33470001.220703095
1966	29969999.3133545
1967	26389999.3896484
1968	16920000.0762939
1969	15000000
1970	12000000
1971	22000000
1972	25000000
1973	33000000
1974	12000000
1975	17000000
1976	21000000
1977	12000000
1978	11000000
1979	12000000
1980	2000000
1981	-7000000
1982	-2000000
1983	-2000000
1984	-3000000
1986	-5000000
1987	29000000
1988	29000000
1989	40000000
1990	56000000
1991	59000000
1992	65000000
1993	42000000
1994	53000000
1995	2000000
1996	2000000
1999	32080001.831054702
2000	2420000.07629395
2001	7699999.80926514
2002	367609985.35156304
2003	485790008.544922
2004	778289978.027344
2005	1318300048.82813
2006	1403709960.9375
2007	1514280029.29688
2008	2111580078.125
2009	2979929931.64063
2010	2938840087.89063
2011	3054949951.17188
2012	2714090087.89063
2013	1694069946.28906
2014	1928079956.05469
2015	1631469970.70313
2016	1375760009.76563
2017	1215109985.35156
2018	914369995.117188
2019	1428209960.9375
2020	1009469970.70313
2021	1480719970.70313
2022	1296000000