Year	current US$
1970	46949999.50565401
1971	56159999.56801538
1972	52819999.91647898
1973	43170000.46186152
1974	61959999.41602347
1975	67609999.90627171
1976	53289999.477565266
1977	52399999.938905224
1978	96109998.73094265
1979	97710000.35665925
1980	150149999.7023493
1981	124960002.37017871
1982	121040000.29526645
1983	75239999.7990578
1984	49919999.01458617
1985	37349999.791011184
1986	120389997.344464
1987	60710000.33430749
1988	120320001.31905076
1989	121400000.33006069
1990	280569997.86384434
1991	129750000.0316649
1992	217500001.6111879
1993	216160003.5447628
1994	244949998.8015742
1995	196860002.22899026
1996	206350000.34235412
1997	354470000.2111495
1998	248919999.88071615
1999	233929999.43532056
2000	285270004.7474355
2001	233320002.71044672
2002	658979990.2979285
2003	224049999.32460487
2004	257740001.79395068
2005	362230000.656098
2006	409490004.91574407
2007	322969994.45557564
2008	429379991.0135565
2009	354829999.80635935
2010	270039998.3152747
2011	223269999.3923308
2012	323130000.172183
2013	137700001.3925135
2014	146280000.29921526
2015	468050002.1725898
2016	426950000.3866847
2017	364570005.9868397
2018	395820005.84155273
2019	545499995.5743554
2020	508790002.6887653
2021	390009999.6030331
2022	190160000.99480143