Year	NFL, current US$
1970	0
1971	0
1972	0
1973	0
1974	3175000
1975	-4360000
1976	0
1977	9823000
1978	0
1979	0
1980	-8500000
1981	0
1982	14900000
1983	0
1984	0
1985	-320000
1986	-7920000
1987	-2210984.6
1988	-2394078.1
1989	-3044583.8
1990	-806439.6
2022	0