Year	current US$
1970	48519999.243319035
1971	51740000.7173419
1972	45729999.85516063
1973	77730001.00068745
1974	102050000.54463746
1975	157199998.87980527
1976	104350000.68321812
1977	134139999.95589262
1978	223769997.20931068
1979	304799998.65032715
1980	261020002.69293797
1981	247010001.30921593
1982	269770001.5604496
1983	238350001.5437603
1984	199720000.81092134
1985	217489998.81744397
1986	281179997.265339
1987	357800003.5881995
1988	375390002.36988056
1989	497529998.8985061
1990	513009995.81813806
1991	526299992.7401541
1992	435290000.85592264
1993	445499998.2602896
1994	383649999.43599117
1995	465020005.88923705
1996	523040001.89714134
1997	393630004.4730305
1998	388069996.4240193
1999	379979995.42579025
2000	276559997.51761556
2001	270479999.2442129
2002	359549999.26313764
2003	653530012.2797486
2004	528909997.4036217
2005	1734449993.848803
2006	2257570038.2888346
2007	1139870018.1245804
2008	825470003.7725271
2009	532150001.53332955
2010	599129995.7521259
2011	725310006.3800812
2012	543149994.9134886
2013	619870001.4483187
2014	580200000.9007753
2015	489559999.6037782
2016	572019996.6505169
2017	859510007.5136878
2018	1039039995.0779967
2019	1066230009.6545376