1967
1966
1967
1971
1973
1977
1975
1970
1968
1975
1976
1970
1981
1969
1982
1970
1973
1978
1972
1965
1971
1978
1974
1963
1971
1966
1959
1970
1970
1989
1976
1972
1991
1974
1978
2006
1976
1996
1981
1984
1967
1977
1971
1979
1972
1983
1982
1981
1996
1995
1978
1992
1976
1967
1985
1997
1971
1955
1962
1982
1986
1971
1977
1972
1981
1965
1964
1959
1995
1965
1964
1967
1962
1970
1984
1965
1977
1966
1973
1972
1977
1968
1971
1971
1971
1959
1959
1967
1968
1955
1955
1968
1967
1972
1977
1977
1968
1985
1965
1985
1984
1986
1977
1986
1982
1977
1977
1968
1964
1959
1959
1959
1959
1954
1967
1978