Year	current US$
1970	26342180.8637909
1971	22744322.5110388
1972	20779287.9043828
1973	39749899.6562242
1974	46492784.4100635
1975	107345632.091711
1976	67044381.8534897
1977	233623080.039864
1978	231998555.163472
1979	97815341.0885453
1980	120376000.317431
1981	107045053.309302
1982	160593112.674592
1983	105891605.67398
1984	93006753.916705
1985	64862239.3557921
1986	114140501.145578
1987	104510377.93598
1988	114715318.293782
1989	113534833.409069
1990	133430758.196653
1991	133865905.719351
1992	135437092.475518
1993	111129924.608995
1994	99697174.8033794
1995	125704420.915464
1996	124687022.084763
1997	107385375.154267
1998	106464059.625565
1999	110551050.007494
2000	107271227.226311
2001	106457562.87731
2002	102486310.223526
2003	116561600.622875
2004	117309740.507228
2005	115162648.473677
2006	159040276.187026
2007	262734265.270783
2008	240301557.703889
2009	232318034.017034
2010	425951874.520744
2011	450702522.981591
2012	385203080.194354
2013	311572975.035322
2014	333151562.389777
2015	408636225.899687
2016	479499881.082704
2017	402734880.673699
2018	227013586.694776
2019	251092117.759886
2020	299597988.624723
2021	312966727.225793