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	109999.997541308
1988	49999.998882412896
1989	119999.997317791
1990	39999.9991059303
1991	2850000.0014901203
1992	2449999.9824911403
1993	3190000.01810491
1994	2989999.99091029
1995	3180000.0090151997
1996	10559999.7472018
1997	9240000.12688339
1998	4320000.00961125
1999	4690000.02741814
2000	3919999.92355704
2001	3129999.99895692
2002	7340000.0333786
2003	10600000.189617299
2004	13509999.7613579
2005	17759999.9345839
2006	24549999.743699998
2007	51289999.6042252
2008	68409999.9405444
2009	56049999.590963095
2010	62259999.3404001
2011	63790000.4461408
2012	76099999.5004386
2013	96590001.97798009
2014	109360001.623631
2015	113840001.353994
2016	138179999.163374
2017	176740002.36205798
2018	215939998.509362
2019	209450000.546873
2020	167260002.549738
2021	319769996.922463
2022	273289998.4903635