1996
late 1970s and 1980s
1977
1986
1984
1985
1981
1960
1979
1970
1955-1985
1970-1981
1980
1950-1960
1973
1950-1959
1955
1955-1960
1997
1980-1990
circa 1953
1993
1994
circa 1972
1987
1973-1983
(1962); 1982
1993-1995
1962
1957
1961
1960-1970
1971
1992
1938 and 1951
1965-1975
1989
1983
1950
1951