Year	current US$
1970	9240000.00022352
1971	10030000.202357799
1972	8529999.91923571
1973	8270000.012591479
1974	17700000.2600253
1975	18110000.1223385
1976	11299999.9597669
1977	9840000.02592802
1978	13820000.0282377
1979	18540000.1015514
1980	23229999.691247903
1981	27400000.1177192
1982	28009999.990463298
1983	28030000.3606826
1984	28710000.062361397
1985	29769999.7611344
1986	44489999.262616
1987	48809998.9891052
1988	43929999.8804927
1989	61160001.1587143
1990	64550000.1832843
1991	90710000.1648068
1992	108660000.789911
1993	144699998.68422702
1994	133519999.88965699
1995	153039999.60422498
1996	156860001.042485
1997	81780000.3048033
1998	79499999.7299165
1999	62059999.8831749
2000	57710000.1871586
2001	52359999.9472499
2002	47259999.8414516
2003	53540000.4982948
2004	53240000.5459785
2005	63950000.9119511
2006	61540000.4982948
2007	69300000.0119209
2008	57100000.0834465
2009	59890000.2241135
2010	57140000.075101905
2011	56149999.856948905
2012	52919774.3902914
2013	62184760.4811192
2014	73897560.8348846
2015	69554388.42793229
2016	57896944.691427104
2017	61545719.6906209
2018	70836953.2823563
2019	75104999.8998642
2020	76843999.9818802
2021	71154000.4611015
2022	71749000.01287463