Year	NFL, current US$
1970	8286000
1971	6789000
1972	4565000
1973	5459000
1974	4024000
1975	9082000
1976	7794000
1977	17839000
1978	28065000
1979	30960000
1980	50426000
1981	37653000
1982	34907000
1983	35661000
1984	37563000
1985	38452000
1986	21237000
1987	12650000
1988	7862000
1989	10727000
1990	10765000
1991	-10763000
1992	-13316000
1993	-3432000
1994	4444000
1995	13835000
1996	14589000
1997	4825000
1998	9440000
1999	6654000
2000	-6236000
2001	-12209000
2002	-18129000
2003	-19153000
2004	-21219000
2005	-21895000
2006	-21929000
2007	-22010000
2008	-22234000
2009	-22180000
2010	-22062000
2011	-22213000
2012	-22075000
2013	-21627000
2014	-20558000
2015	-17915000
2016	-17183000
2017	-16614000
2018	-16763000
2019	-15736000
2020	-10621000
2021	-9750000
2022	-8255000