1953
1982
1968
1960
1970
1951
1956
1981
1959
1960
1975
1977
1972
1962
1959
1975
1953
1949
1958
1961
1965
1954
1949
1951
1951
1969
1963
1960
1960
1954
1955
1959
1964
1958
1984
1961
1986
1961
1980
1959
1968
1955
1971
1962
1966
1966
1983
1961
1960
1970
1965
1981
1966
1951
1965
1964
1960
1952
1989
1964
1964
1960
1958
1962
1962
1960
1963
1974
1975
1957
1954
1972
1967
1978
1971
1985
1972
1959
1955
1989
1961
1959
1966
1964
1966
1957
1989
1990
1965
1962
1984
1977
1982
1963
1968
1959
1972
1963
1981
1965
1966
1963
1978
1956
1958
1983
1970
1966
Comments