Year	current US$
1970	56749999.80628489
1971	65509999.74086877
1972	67350000.02197918
1973	73330000.29064718
1974	72000000.34458937
1975	105370000.67532066
1976	100990000.69499013
1977	91059999.55534936
1978	109899999.40991405
1979	137020000.54717064
1980	178109999.06063095
1981	259410001.3673306
1982	224169999.808073
1983	182060000.41961664
1984	179839999.85456467
1985	210520000.99420545
1986	240249999.88079065
1987	251340000.74863425
1988	299129999.7568134
1989	325580000.281334
1990	279549999.83310705
1991	329870001.3160706
1992	278970002.114773
1993	239779999.9713897
1994	188289998.4121323
1995	180690001.681447
1996	226449997.79760826
1997	266219997.63511106
1998	235810000.360012
1999	204080000.26643285
2000	137209998.96526337
2001	115380000.6173551
2002	123519999.79093677
2003	141169999.3610382
2004	179349999.60660934
2005	184880001.3661385
2006	211610000.04410735
2007	203669999.39084047
2008	268210000.63419324
2009	277219998.91102314
2010	254710000.63419342
2011	204649999.67813492
2012	203471959.71012115
2013	198090335.78634262
2014	217079555.8094977
2015	196065520.7931996
2016	190906001.28099328
2017	180050847.1131325
2018	181712789.7143364
2019	225866484.13538933
2020	264022843.7483311
2021	242358346.2834358
2022	250297266.3640976