Year	current US$
1960	0
1961	0
1962	0
1963	0
1964	2900000.09536743
1965	15270000.338554401
1967	10430000.0667572
1968	11279999.9713898
1969	10499999.7615814
1970	20099999.904632602
1971	16079999.5400012
1972	20699999.690055802
1973	32590000.2866983
1974	66319999.2477894
1975	97660000.9948015
1976	96300000.1311302
1977	142569994.568825
1978	214099999.248981
1979	185739997.409284
1980	253570003.220811
1981	278070008.046925
1982	194930004.386231
1983	140750000.15646198
1984	154589998.90089002
1985	133010000.39279501
1986	186160000.860691
1987	227870002.30886
1988	251430006.38485
1989	210780000.68664598
1990	279369991.89853704
1991	230489998.003468
1992	224610002.875328
1993	144179998.63624603
1994	161529999.97139
1995	220420002.250001
1996	184660004.157573
1997	185789998.531342
1998	154809997.797012
1999	75149997.7111816
2000	69560000.4196167
2001	242830000.638962
2002	233809999.236837
2003	221860003.471375
2004	-112090007.305145
2005	332279994.9646
2006	212449993.610382
2007	256619994.699955
2008	297499999.28474396
2009	274839989.78138
2010	258070000.886917
2011	222290003.955364
2012	171510001.406074
2013	187279998.63773602
2014	139120001.56939
2015	126009997.367859
2016	108850000.835955
2017	105020002.581179
2018	103100001.623854
2019	115110000.293702
2020	88390003.3719838
2021	65559998.929500595
2022	51890001.2373925