1967
1978
1974
1968
1985
1977
1986
1970
1972
1974
1974
1989
1975
1971
1979
1968
1974
1988
1969
1978
1969
1990
1963
1973
1967
1976
1975
1970
1966
1970
1978
1971
1979
1971
1976
1979
1971
1983
1983
1976
1969
1989
1977
1970
1978
1984
1978
1979
1978
1984
1979
1984
1985
1969
1983
1970
1975
1970
1977
1974
1974
1972
1985
1986
1979
1983
1972
1977
1975
1979
1973
1979
1974
1968
1976
1961
1982
1972
1970
1968
1987
1985
1975
1970
1983
1967
1970
1986
1982
1978
1972
1968
1969
1969
1977
1973
1971
1980
1963
1981
1970
1966
1969
1986
1965
1982
1972
1983
1968
1980
1986
1980
1980
1978
1966
1982
1977
1968
1970
1987
1940
1981
1975
1990
1971
1974
1982
1979
1968
1968
1982
1983
1990
1980
1984
1975
1979
1977
1975
1980
1973
1975
1980
1979
1965
Comments