Year	current US$
1970	7940000.001341103
1971	9240000.043064354
1972	16059999.70063567
1973	15340000.070631504
1974	26499999.850988388
1975	34370000.27112662
1976	30210000.07912517
1977	40459999.73453581
1978	62469999.90195036
1979	106729999.39136213
1980	143270000.2379715
1981	110619999.3118644
1982	86269999.69035392
1983	104860000.00685452
1984	105260000.72062016
1985	130990000.0728667
1986	141699999.0493059
1987	159980000.12710693
1988	173210000.79065558
1989	206620000.1761316
1990	237989999.3631989
1991	252239998.31080443
1992	331980000.07867837
1993	326709997.1175193
1994	360019998.07357776
1995	346289999.842644
1996	320940000.95129025
1997	173490000.6055832
1998	157279999.97138977
1999	166889999.8068809
2000	175730000.3767013
2001	186439998.03066257
2002	174009999.5136261
2003	196569999.0391731
2004	210010000.34809116
2005	262410000.97990036
2006	301830002.00986874
2007	458130001.90258
2008	478779996.8719482
2009	485159999.90701663
2010	514599999.4277954
2011	498340002.65598303
2012	414225326.4784813
2013	499119484.2457772
2014	529030477.2257804
2015	552786400.88439
2016	543909726.4045851
2017	570597540.6169896
2018	563985949.4566921
2019	601813995.6593512
2020	583728003.6211014
2021	520506000.0419618
2022	514948001.1463169