Year	current US$
1970	4040000.0065565095
1971	4569999.996572729
1972	18280000.35509472
1973	15379999.693483118
1974	9870000.166818501
1975	11799999.929964546
1976	17619999.792426813
1977	29139999.710023362
1978	30900000.119581837
1979	54410000.54776666
1980	143499997.31779104
1981	123810002.16677794
1982	104199998.3489514
1983	126189998.30819656
1984	146489998.459816
1985	197429997.20573416
1986	168140002.6232004
1987	154420002.96711916
1988	226510002.73227698
1989	217639995.99218377
1990	183189995.98920342
1991	220959998.86095527
1992	217039998.7399578
1993	240659998.58081332
1994	456420002.33009446
1995	340119998.1328105
1996	92259998.51897362
1997	92010001.95182863
1998	82079999.81194744
1999	79899999.83459714
2000	132229998.55875967
2001	155389998.19755554
2002	201319998.37607157
2003	161510000.1394749
2004	106989999.94993208
2005	29830000.706017032
2006	13439999.934285877
2007	29759999.63283537
2008	33610000.28252604
2009	46379999.67485666
2010	30410000.115633003
2011	96680001.25885002
2012	91498400.80738069
2013	79946752.26975232
2015	67714082.36026773
2016	80140536.93413743
2017	185541968.55425844
2018	49803478.36017613
2019	297931622.9224205