Year	current US$
1960	0
1961	0
1962	0
1963	0
1964	0
1965	0
1966	0
1967	0
1968	0
1969	0
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	390000.000596046
1988	840000.007301569
1989	1110000.01057982
1990	1439999.9789893602
1991	11999999.9813735
1992	12830000.249669
1993	11469999.961555
1994	17230000.2444535
1995	21920000.3687292
1996	63320001.1774898
1997	62980001.3154745
1998	65989999.7506291
1999	53380000.161006995
2000	44260000.4542619
2001	90810001.6787648
2002	121649998.797104
2003	97779999.75718561
2004	117339999.69810201
2005	106349999.332801
2006	92579999.07247719
2007	162219998.691231
2008	184490000.005811
2009	191889995.647594
2010	272280005.486682
2011	348340003.820136
2012	399010009.96865296
2013	432420000.135899
2014	414419999.646023
2015	515320000.056177
2016	481510004.21308
2017	505739996.67726505
2018	507639994.956553
2019	494719996.38527596
2020	600450007.293373
2021	575489998.027682
2022	631619998.7828732