1980
1968
1975
1960
1976
1956
1974
1960
1962
1954
1963
1975
1980
1981
1982
1963
1961
1960
1961
1983
1955
1983
1962
1970
1959
1963
1965
1956
1982
1962
1970
1959
1971
1982
1965
1959
1957
1971
1966
1978
1951
1979
1965
1964
1961
1966
1962
1957
1982
1965
1966
1975
1963
1959
1961
1983
1977
1969
1961
1962
1964
1964
Comments