1971-09-08 1968-07-19 1965-12-14 1972-01-01 1965-10-01 1968-12-27 1968-09-01 1969-07-23 1976-12-20 1968-06-19 1970-01-01 1968-09-20 1970-10-31 1969-10-29 1970-11-13 1970-11-11 1969-03-15 1968-10-31 1994-01-01 1982-10-08 1967-01-01 1970-05-01 1997-12-01 1968-07-30