Year	NFL, current US$
1970	-875000
1971	-15000
1972	-900000
1973	9373000
1974	2135000
1975	56171000
1976	38203000
1977	20620000
1978	-9853000
1979	-5324000
1980	4983000
1981	-15375000
1982	-4205000
1983	-6943000
1984	-5882000
1985	-5191000
1986	19714000
1987	14127000
1988	9524000
1989	-7275000
1990	-16291000
1991	-12571000
1992	-8580000
1993	-7313000
1994	-3732000
1995	-10383000
1996	1572000
1997	-3788000
1998	-4197000
1999	-172000
2000	-44000
2001	-490000
2002	-593000
2003	-693000
2004	-322000
2005	-161000
2006	-201000
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	-12000
2014	0
2015	0
2016	-61000
2017	17307000
2018	-722000