Year	current US$
1970	6619999.837130312
1971	3029999.779537312
1972	-1170000.0353157502
1973	6080000.048503281
1974	1390000.008046627
1975	14220000.280067343
1976	2160000.009462236
1977	1929999.9326467514
1978	1370000.025257467
1979	2209999.950602652
1980	2430000.0127404914
1981	7899999.998509887
1982	24469999.469816655
1983	50020000.070333466
1984	58179999.60668385
1985	112420000.82135199
1986	280999999.52316284
1987	188250000.0037251
1988	259150002.3901463
1989	339979996.1522219
1990	225920002.79389316
1991	167730001.57624468
1992	177460002.064705
1993	127319998.30901626
1994	94310000.05826345
1995	87810000.80704688
1996	146740001.06751913
1997	66820000.139996484
1998	64320000.03755094
1999	89610003.61293557
2000	74579998.6198545
2001	19099999.90649526
2002	86350000.38892023
2003	93279998.19070101
2004	107759999.96997415
2005	615119996.3036929
2006	838119980.5587529
2007	80510001.47126618
2008	85299998.8943338
2009	234160003.51682317
2010	201000000.5140901
2011	46140000.20548703
2012	22999999.87892806
2013	55889999.57591294
2014	44479999.76016581
2015	60459999.30799004
2016	166079999.1041417
2017	157609997.58727843
2018	99009999.49872504
2019	88119999.87810847