1982-11-15 1978-07-01 1981-11-01 1976-01-01 1979-08-10 1978-01-14 1981-09-25 1981-02-01 1980-11-01 1980-09-01 1979-06-02 1979-08-01 1979-03-03 1979-01-01 1985-02-01 1985-02-01 1979-10-01 1982-08-01 1984-05-01 1981-09-01 1970-09-01 1976-09-25 1977-11-26 1978-01-07 1978-12-02 1979-05-19 1979-06-23 1979-09-22 1983-06-10 1982-02-05 1982-02-26 1982-09-15 1982-01-22 1981-02-06 1981-02-20