Year	current USD
1970	5185185.185185189
1971	5891358.02469136
1972	6503703.703703701
1973	7152747.93487084
1974	8446969.696969701
1975	10529138.0375904
1976	11876000
1977	13208000
1978	14867263.944511
1979	17300000
1980	20083333.3333333
1981	21959582.694973398
1982	25491173.2282275
1983	29081758.9307813
1984	29211271.3707669
1985	30532050.1578394
1986	31053048.073933803
1987	33928833.3211117
1988	35789121.1376947
1989	36331136.3502619
1990	37929191.1253967
1991	35431485.706616595
1992	37607537.8943056
1993	37041837.4232624
1994	39252998.633534096
1995	39766584.5061601
1996	39547026.0354195
1997	42587851.9897603
1998	42273075.8854004
1999	47484957.370668605
2000	51358135.3085642
2001	64701738.3751416
2002	85405885.72177011
2003	102934146.206926
2004	130650327.932937
2005	159326023.750306
2006	157247689.52493
2007	169575397.124144
2008	187069695.835967
2009	209703501.957568
2010	254950072.106677
2011	284518851.062623
2012	256686839.473598
2013	281038425.69359803
2014	328115662.23892695
2015	323797729.64027095
2016	356495278.64058703
2017	436745563.54662204
2018	429373005.93266296
2019	428696895.057622
2020	434381673.461464
2021	450659951.520758
2022	428268082.838298