Year	current US$
1970	3779999.975115057
1971	3450000.0439584274
1972	3640000.065788622
1973	6560000.0042468235
1974	8329999.919980764
1975	13979999.991133811
1976	13920000.072568655
1977	13109999.936074015
1978	15169999.852776527
1979	21109999.82059002
1980	19429999.841377143
1981	17889999.77149069
1982	14089999.888092289
1983	16859999.977052197
1984	17079999.97958541
1985	13159999.99456108
1986	19859999.76657331
1987	24599999.697878942
1988	25600000.044330962
1989	22460000.276565563
1990	40029999.61189924
1991	37170000.21599233
1992	65159999.184310466
1993	52380000.14796853
1994	47059999.849647254
1995	101180000.5231053
1996	97949999.92474914
1997	55059999.41192567
1998	64189999.4835258
1999	51139999.47346745
2000	41180000.62368809
2001	36299999.81448053
2002	51850000.642240055
2003	56909999.92750589
2004	77319998.6070394
2005	77140000.43459249
2006	82179999.67560172
2007	79849999.71091747
2008	115029998.64146113
2009	100210000.58762725
2010	101800000.94883141
2011	95180000.9906293
2012	82310000.54627652
2013	78759999.01257452
2014	90819998.60331415
2015	63200000.48168003
2016	72390000.43831766
2017	56480000.199750066
2018	58230000.10289249
2019	44329999.24197792
2020	44559999.890625484
2021	40090000.03524123
2022	26339999.932795767