1975-01-24 1980-01-19 1975-01-09 1978-10-08 1979-09-30 1980-01-31 1977-06-25 1979-10-08 1979-05-03 1976-01-01 1979-09-05 1980-03-26 1980-01-01 1980-02-01 1977-02-01 1978-08-27 1977-05-08 1975-10-27 1977-09-10 1974-11-11 1980-01-21 1975-01-01 1976-01-01 1978-07-23 1976-03-22 1977-05-03 1977-04-13 1974-05-31 1977-09-11 1977-07-31 1977-04-18 1976-09-19 1981-02-05 1979-11-28 1976-03-12