Year	current US$
1975	579999.983310699
1976	1090000.0333786
1977	1350000.02384186
1978	3720000.02861023
1979	5190000.05722046
1980	11640000.3433228
1981	6369999.88555908
1982	3019999.98092651
1983	6219999.79019165
1984	5170000.07629395
1985	4010000.2288818406
1986	6139999.8664856
1987	8239999.77111816
1988	9489999.77111816
1989	7139999.8664856
1990	9789999.96185303
1991	9470000.26702881
1992	8029999.73297119
1993	6869999.88555908
1994	8970000.26702881
1995	10409999.8474121
1996	12090000.1525879
1997	9350000.38146973
1998	9300000.19073486
1999	12460000.038146999
2000	5980000.01907349
2001	4179999.8283386203
2002	1960000.03814697
2003	8109999.65667725
2004	9479999.54223633
2005	11140000.3433228
2006	11829999.923706101
2007	12100000.3814697
2008	11670000.076293899
2009	6230000.01907349
2010	4139999.8664856004
2011	2390000.10490417
2012	39999.9991059303
2013	50000.0007450581