Year	current US$
1970	75200000.7741153
1971	79419999.73170456
1972	83300000.67315999
1973	80590000.56795783
1974	105530000.0756979
1975	112160000.11377041
1976	100039999.84450641
1977	100510001.05403365
1978	182489997.8600442
1979	155900000.98757446
1980	167979998.6854196
1981	127250000.63888735
1982	94379999.84994532
1983	83719999.82185657
1984	64719999.60765239
1985	55700000.45932831
1986	79220000.2409518
1987	95049999.2314725
1988	101069999.66129668
1989	80070000.199601
1990	108890001.26905748
1991	108900000.56289133
1992	98229999.16225672
1993	91649999.51608478
1994	71459999.41229825
1995	64009999.50431287
1996	53739999.32035802
1997	191109998.7998606
1998	73999997.11103736
1999	91719999.07121064
2000	78410001.08607121
2001	57109998.64898619
2002	55109999.9342114
2003	39590000.094845906
2004	25380000.665783755
2005	55279999.975115076
2006	41219999.317079745
2007	31250000.24959446
2008	32989999.69102441
2009	47240000.11570749
2010	23370000.362396248
2011	39179999.48561194
2012	53339999.6720254
2013	48520000.72225923
2014	37990000.450983584
2015	46289999.796077654
2016	36789999.95626513
2017	42599999.72209338
2018	44820000.013336554
2019	67299999.44008878
2020	60079999.57725398
2021	59179999.59923327
2022	33070000.89995568