Year	current US$
1960	21899999.6185303
1961	25899999.6185303
1962	37140000.000595994
1963	0
1964	0
1965	7329999.92370605
1967	18790000.7665157
1968	25729999.5422363
1969	17700000.166892998
1970	50820001.6990304
1971	48320000.0692159
1972	57590001.091361
1973	71409999.6518344
1974	64080000.2198666
1975	67960001.1724979
1976	64580000.1583993
1977	84760000.1897663
1978	86100001.4934689
1979	101740003.367886
1980	116780003.748834
1981	113949999.023229
1982	138249999.836087
1983	82110000.1558661
1984	100299998.84590499
1985	78289999.0100414
1986	123590001.057833
1987	182869999.68439302
1988	238220006.300136
1989	245429999.414831
1990	256060004.040599
1991	192720003.61233902
1992	77640000.3265589
1993	23379999.5481968
1994	18920000.353828102
1995	38320001.0992587
1996	22220001.431181997
1997	32010001.486167297
1998	37130002.1074712
1999	140360001.46530598
2000	216230006.29246202
2001	232620001.87113902
2002	226709997.39132798
2003	174829998.463392
2004	141659998.940304
2005	324530003.488064
2006	207610002.525151
2007	136100002.016872
2008	171699997.33567202
2009	157009994.868189
2010	73340000.6555021
2011	57029999.839142
2012	12409999.974072
2013	4809999.94836748
2014	-11179999.87863
2015	-4760000.10967255
2016	-6099999.60847199
2017	-5600000.28088689
2018	-8250000.033527609
2019	-6590000.020340091
2020	-9429999.72961843
2021	-3240000.26471913
2022	-2620000.205934044