Year	NFL, current US$
1970	-53000
1971	-53000
1972	-53000
1973	-53000
1974	1255000
1975	-53000
1976	-218000
1977	-213000
1978	-174000
1979	-185000
1980	-186000
1981	10185000
1982	94535000
1983	16500000
1984	-2565000
1985	-3238000
1986	9927000
1987	11274000
1988	14883000
1989	1569000
1990	6321000
1991	6242000
1992	-4745000
1993	-5099000
1994	2287000
1995	2161000
1996	-39341000
1997	-697000
1998	-1465000
1999	-1979000
2000	-1846000
2001	-2206000
2002	-958000
2003	-1434000
2004	-428000
2005	-1318000
2006	591000
2007	-2990000
2008	-1280000
2009	-2733000
2010	-11268000
2011	-4504000
2012	5072000
2013	-27506000
2014	3376000
2015	1020000
2016	706000
2017	549000
2018	7340000
2019	193000
2020	1673000
2021	1434000
2022	0