Year NFL, current US$ 1970 -4000 1972 -1000 1973 -1000 1974 -1000 1975 -4000 1976 -3000 1977 -2000 1978 -2000 1979 -2000 1980 -2000 1981 -1000 1982 -1000 1983 0 1984 0