1991-04-01 1985-10-01 1990-09-01 1991-04-01 1985-08-01 1988-01-01 1998-06-11 1977-07-15 1985-10-01 1983-10-01 1993-04-08 1988-09-20 1980-07-04 1967-12-15 1989-07-01 1994-04-21 1989-09-01 1983-02-01 1979-09-28 1985-08-28 1951-01-01 1951-01-01 1969-01-03 1971-12-10 1972-05-26 1975-11-21 1978-02-17 1980-05-23 1986-01-01 1984-12-31 1987-03-01 1987-10-17 1989-08-28 1988-10-10 1990-08-10