Year	current US$
1970	550000.0119
1971	354452.5802
1972	416388.8991
1973	816651.2847
1974	438333.5412
1975	396261.9305
1976	100000.0015
1977	649999.9762
1978	649999.9762
1979	750000
1980	699999.9881
1981	800000.0119
1982	550000.0119
1983	500000
1984	850000.0238
1985	750000
1986	800000.0119
1987	4500000
1988	3650000.095
1989	7000000
1990	6250000
1991	7700000
1992	8800000
1993	9550000
1994	11250000
1995	15450000
1996	20350000
1997	16250000
1998	17700000
1999	18950000
2000	19150000
2001	20300000
2002	20134500
2003	21713000
2004	18250000
2005	40794146.7041721
2006	35778093
2007	55286712.96
2008	39018966.67
2009	37170015.89
2010	35029244.525
2011	56726261.536
2012	52694935.0010688
2013	63896785.9782236
2014	62510666.9516274
2015	54531589.6431534
2016	51615785.7846208
2017	48758037.1105