1979,1980,1981,1982,1981,1981,1980,1978,1977,1975,1974,1972,1970,1970,1968,1967,1965,1965,1968,1970,1971,1972,1973,1977,1978;851,850,850,849,847,845,844,844,845,845,846,845,845,844,843,844,845,847,850,850,851,851,852,852,851