Year	current US$
1970	10800000.1907349
1971	13100000.3814697
1972	16200000.7629395
1973	19329999.9237061
1974	29469999.3133545
1975	50229999.5422363
1976	43509998.3215332
1977	41700000.762939505
1978	44860000.6103516
1979	53099998.4741211
1980	52400001.5258789
1981	50500000
1982	49270000.4577637
1983	47529998.779296905
1984	43779998.779296905
1985	42840000.1525879
1986	60709999.0844727
1987	66150001.525878906
1988	93290000.9155273
1989	76470001.2207031
1990	81040000.9155273
1991	81309997.55859381
1992	74089996.3378906
1993	73650001.5258789
1994	85110000.6103516
1995	97520004.2724609
1996	101970001.22070299
1997	112889999.38964799
1998	98290000.9155273
1999	101440002.441406
2000	85180000.3051758
2001	84849998.4741211
2002	92050003.0517578
2003	129639999.389648
2004	159589996.33789098
2005	223699996.94824198
2006	202809997.55859402
2007	247050003.05175802
2008	277850006.10351604
2009	225960006.71386698
2010	271209991.455078
2011	329570007.324219
2012	361480010.986328
2013	350440002.441406
2014	408520019.53125
2015	356399993.89648396
2016	359630004.88281304
2017	369160003.66210896
2018	461470001.220703
2019	452459991.455078
2020	432080017.089844
2021	576169982.910156
2022	168789998.51085243