Year	NFL, current US$
1970	-499000
1971	91000
1972	725000
1973	3228000
1974	18607000
1975	32702000
1976	55244000
1977	90282000
1978	159583000
1979	124439000
1980	40928000
1981	-7054000
1982	-6097000
1983	-3876000
1984	-11828000
1985	-13519000
1986	-22532000
1987	-8000000
1988	-1849000
1989	-2287000
1990	-120000
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	-6065000
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	48343000
2014	-11958000
2015	1603000
2016	-10977000
2017	-10430000
2018	-4686000