Year	current US$
1970	9470000.054687263
1971	10100000.187754627
1972	9250000.029802322
1973	8990000.044927005
1974	12079999.951645724
1975	19150000.059977174
1976	16720000.05282462
1977	25689999.967813484
1978	33380000.20384789
1979	49949999.287724525
1980	50610000.099986784
1981	53049999.833107
1982	61300000.645220324
1983	85279999.73297119
1984	71540000.48711902
1985	84279999.62121251
1986	90379998.78823759
1987	93040000.3530085
1988	101020000.256598
1989	128580001.12324947
1990	148160000.4527718
1991	160659998.92354015
1992	219370000.54121017
1993	263249996.72174448
1994	226619999.7663497
1995	228889999.98569506
1996	207519999.68290338
1997	112580000.13045968
1998	106380000.36776061
1999	109439999.52077863
2000	124390000.43272962
2001	143339998.06642532
2002	128269999.56369402
2003	149050000.011921
2004	156160001.09910965
2005	194309998.86989596
2006	230849999.0701677
2007	345750002.14576715
2008	361119996.1304664
2009	362880000.23365015
2010	398499998.3310699
2011	366650002.6583673
2012	335570968.90313554
2013	404621158.5700512
2014	438110695.89853275
2015	429178968.9958096
2016	434530196.9284193
2017	459481468.31989306
2018	459667536.556721
2019	473963997.1852303
2020	458370999.81307983
2021	418215000.92744833
2022	411496001.72042865