Year	NFL, current US$
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	4977000
1981	0
1982	3532000
1983	-410000
1984	15000
1985	125000
1986	-2038000
1987	-2279000
1988	-1680000
1989	-739000
1990	-590000
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	16777000
2007	-1070000
2008	-3902000
2009	-5085000
2010	-2390000
2011	-2941000
2012	-3542000
2013	-3661000
2014	-2003000
2015	-2666000
2016	-674000
2017	-198000
2018	-137000