Year	current US$
1970	5390000.011771915
1971	6809999.981895089
1972	7999999.949708582
1973	9270000.008866189
1974	11459999.931976197
1975	18679999.900981776
1976	17330000.054091223
1977	25029999.980702996
1978	34169999.9794364
1979	44189999.49097635
1980	53609999.86156821
1981	54149999.49932099
1982	54250000.022351764
1983	64970000.49054625
1984	71160000.23484233
1985	94879999.84249473
1986	101419999.0481138
1987	114229999.59066507
1988	122880000.80734494
1989	154560001.39564267
1990	171890000.7698685
1991	190569999.1881848
1992	255480000.4363061
1993	254199996.59061432
1994	283709998.78644943
1995	281950000.3457071
1996	262759999.39441696
1997	132560000.1215935
1998	120069999.75442886
1999	128919999.95708463
2000	142509999.75204462
2001	149079998.43358994
2002	142769999.7425079
2003	163539999.42541122
2004	174440000.4148484
2005	222560000.89645383
2006	258480001.6880036
2007	399450000.7629393
2008	420589997.23196024
2009	412779998.3024597
2010	447669997.69210804
2011	427730002.16484076
2012	351970453.97758484
2013	404041896.04520804
2014	458022543.311119
2015	474456010.3416444
2016	469702902.197838
2017	499527081.6087725
2018	487127268.1951525
2019	521528995.2754976
2020	503407003.04508203
2021	456903999.8650552
2022	440810002.02894235