Year	NFL, US$
1970	1794000
1971	-1141000
1972	4092000
1973	4179000
1974	977000
1975	8339000
1976	19685000
1977	32413000
1978	48081000
1979	31790000
1980	20308000
1981	3477000
1982	-15574000
1983	-13879000
1984	-18174000
1985	-28879000
1986	-31465000
1987	-10606000
1988	2445000
1989	6930000
1990	2907000
1991	-9971000
1992	648000
1993	-12020000
1994	-3392000
1995	-22843000
1996	-4002000
1997	-1464000
1998	-847000
1999	387000
2000	0
2001	0
2002	0
2003	0
2004	-2000000
2005	-2531000
2006	-1535000
2007	-1025000
2008	-91000
2014	-3077000
2015	-1928000