Year	current US$
1969	18039999.917149503
1970	29189999.8690933
1971	40170000.2234429
1972	31990000.184625402
1973	40660000.7936358
1974	36869999.462738596
1975	45090000.7337332
1976	36229999.9259412
1977	43060000.3562868
1978	49439999.9044836
1979	72999999.9813735
1980	65660000.1882762
1981	56190000.5713105
1982	70459999.5296448
1983	81490000.4118681
1984	145300000.056624
1985	172769995.968789
1986	148310001.045465
1987	181959999.386221
1988	185279999.926686
1989	117719999.95783
1990	148519999.27684698
1991	194629999.605939
1992	174690000.54895902
1993	142349999.025464
1994	113949999.531731
1995	143409998.416901
1996	41179999.3161112
1997	46849999.5600432
1998	47459999.848157205
1999	41450000.3643334
2000	32360000.0441074
2001	45439999.8635054
2002	36040000.3269315
2003	31079999.9199808
2004	15650000.2518296
2005	39740000.3001094
2006	86819999.5998293
2007	15919999.9831617
2008	18470000.1217425
2009	10850000.0797212
2010	8629999.9281764
2011	29569999.627769
2012	19599524.448975
2013	10940301.503986102
2014	16822667.112108298
2015	16360822.7297664
2016	26022896.3196278
2017	22667279.9487133
2018	30971973.5201943
2019	47763909.8335058
2020	42127024.4643092
2021	21772039.960371297
2022	30944644.749164596