Year	NFL, current US$
1977	874513.7
1978	2695148.7
1979	2740443.4
1980	2332440.3
1981	30675.6
1983	-209548.5
1984	-595680.4
1985	-818028.9
1986	-2002246.9
1987	-1785291.5
1988	-1568719.3
1989	-1003751.2
1990	-289177.9
1991	-35582.2