1980
1982
1985
1960
1966
1966
1966
1978
1961
1980
1937
1966
1980
1965
1979
1973
1974
1987
1981
1980
1985
1982
1966
1983
1985
1978
1978
1973
1974
1981
1967
1976
1971
1977
1976
1974
1980
1941
1973
1980
1978
1978
1966
1984
1982
1982
1980
1981
1974
1967
1961
1978
1955
1981
1978
1980
1986
1981
1979
1975
1987
1981
1974
1987
1987
1987
1985
1975
1980
1986
1980
1984
1989
1974
1984
1979
1978
1983
1987
1980
1981
1979
1974
1983
1982
1980
1983
1981
1974
1985
1974
1973
1984
1973
1962
1976
1981
1979
1977
1981
1977
1978
1977
1976
1981
1981
1986
1978
1986
1984
1985
Comments