Year	current US$
1970	28800000.905990638
1971	21299999.713897698
1972	39799999.3562698
1973	42929999.82833867
1974	58869998.93188475
1975	85950001.12056735
1976	114209997.25162975
1977	93199999.63045123
1978	121499999.2847443
1979	134969999.79019162
1980	172000000.08940694
1981	154849994.01867387
1982	200029997.16252083
1983	133809997.90132055
1984	147779999.39396974
1985	131309997.21959238
1986	219160000.37267798
1987	266090001.8289687
1988	309720006.6633527
1989	238680003.4232438
1990	441239990.3479968
1991	346319998.7113475
1992	605029983.5652114
1993	650429994.5831298
1994	697679983.0496316
1995	447060002.7441974
1996	444210000.2765661
1997	460849998.7423421
1998	200460003.5250187
1999	183010002.50875968
2000	140050000.8743256
2001	118039999.4812906
2002	184920001.97432885
2003	363039995.0258439
2004	225970001.68077695
2005	2482959996.2160015
2006	2443480021.8921137
2007	753409979.0044129
2008	574710013.7509402
2009	251809996.78373334
2010	1146530024.5359545
2011	334009993.0167196
2012	248230000.09357926
2013	485569986.8947273
2014	417770004.96722794
2015	313169999.9999255
2016	392540001.9809599
2017	533809999.1921333
2018	577610019.6875637
2019	834080006.1710178
2020	843099996.0992491
2021	445480010.79633814
2022	753260005.9714181