1978 1974 1970 1972
1975 1977 1971 1973
1974 1976 1970 1972
1976 1974 1972 1978
1975 1977 1979 1973
1976 1973 1979 1970
1977 1975 1973 1979
1974 1976 1979 1970
1973 1975 1978 1970
1970 1973 1976 1979