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