Year	NFL, current US$
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	1063000
1977	-213000
1978	-213000
1979	2354000
1980	21328000
1981	7470000
1982	7092000
1983	2183000
1984	-115000
1985	-129000
1986	-43000
1987	-2110000
1988	-670000
1989	-491000
1990	-7484000
1991	-4546000
1992	-4464000
1993	-4295000
1994	-4318000
1995	-366000
1996	-228000
1997	0
1998	0
1999	0
2000	-352000
2001	-300000
2002	-2000
2003	0
2004	-282000
2005	-283000
2006	0
2007	0
2008	1520000
2009	786000
2010	3179000
2011	-2242000
2012	5259000
2013	908000
2014	-850000
2015	-1801000
2016	-1799000
2017	-1833000
2018	-1920000