Year	current US$
1969	47630001.0681152
1970	81800003.0517578
1971	111860000.61035201
1972	95190002.44140631
1973	142790008.544922
1974	164190002.44140598
1975	303360015.86914104
1976	217630004.882813
1977	276100006.10351604
1978	298070007.324219
1979	379160003.66210896
1980	382089996.33789104
1981	370549987.792969
1982	417139984.13085896
1983	449089996.33789104
1984	471149993.89648396
1985	496320007.324219
1986	452790008.544922
1987	509350006.10351604
1988	611909973.144531
1989	438209991.455078
1990	545520019.53125
1991	662049987.792969
1992	821719970.703125
1993	793780029.296875
1994	764849975.585938
1995	577030029.296875
1996	161580001.831055
1997	209389999.38964802
1998	175789993.28613302
1999	225649993.89648402
2000	226910003.66210902
2001	220520004.272461
2002	213559997.55859402
2003	185240005.493164
2004	142860000.61035198
2005	307750000
2006	217190002.44140598
2007	143839996.33789098
2008	172699996.94824198
2009	135399993.89648402
2010	116360000.61035201
2011	184080001.831055
2012	154108566.28418
2013	140676147.460938
2014	123046936.035156
2015	100145713.806152
2016	111428627.01416
2017	109642440.79589799
2018	94448493.9575195
2019	141960586.54785198
2020	139253677.368164
2021	132478805.541992
2022	147226678.82591483