1970-09-12 1955-06-15 1952-10-24 1972-05-24 1960-10-19 1953-10-25 1974-12-01 1976-05-01 1968-07-10 1974-01-15 1975-04-01 1974-01-21 1972-01-14 1955-02-01 1986-07-29 1958-05-29 1974-11-19 1956-12-01 1969-01-01 1974-04-05 1980-03-02 1979-02-10 1981-04-02 1991-10-11