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	1399999.97615814
1988	2059999.94277954
1989	5099999.90463257
1990	12329999.923706101
1991	32360000.6103516
1992	46400001.5258789
1993	103309997.558594
1994	77470001.2207031
1995	96550003.0517578
1996	134789993.28613302
1997	130089996.337891
1998	103209999.084473
1999	144729995.727539
2000	135250000
2001	173820007.32421902
2002	220789993.28613302
2003	248220001.220703
2004	333350006.10351604
2005	462949981.689453
2006	375920013.42773396
2007	490359985.35156304
2008	539150024.414063
2009	581070007.324219
2010	900460021.972656
2011	989359985.351563
2012	1183119995.11719
2013	1309479980.46875
2014	1395739990.23438
2015	1468760009.76563
2016	1548420043.94531
2017	1615040039.0625
2018	1799469970.70313
2019	1909420043.94531
2020	1791969970.70313
2021	2292199951.17188
2022	1888159993.4399133