Year	current US$
1969	38619998.9318848
1970	52700000.762939505
1971	43639999.3896484
1972	47729999.5422363
1973	48139999.3896484
1974	69669998.1689453
1975	68620002.746582
1976	76900001.5258789
1977	94199996.9482422
1978	113879997.253418
1979	115970001.22070299
1980	34849998.4741211
1981	209149993.89648402
1982	195080001.831055
1983	252899993.89648402
1984	216809997.55859402
1985	294709991.455078
1986	251979995.727539
1987	313429992.675781
1988	267820007.324219
1989	242570007.32421902
1990	232630004.882813
1991	285929992.675781
1992	238880004.882813
1993	343410003.66210896
1994	269720001.220703
1995	561109985.351563
1996	247919998.168945
1997	439690002.441406
1998	292250000
1999	440540008.544922
2000	465520019.53125
2001	421040008.544922
2002	476920013.42773396
2003	515570007.324219
2004	441329986.57226604
2005	575909973.144531
2006	368679992.675781
2007	460510009.765625
2008	644799987.792969
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0