1977-11-28 1981-01-14 1977-10-20 1988-08-09 1980-03-12 1991-01-01 1991-10-13 1980-08-25 1978-01-01 1981-06-12 1978-09-16 1977-05-25 1978-06-28 1980-04-09 1982-01-01 1977-02-09 1976-07-26 1982-01-20 1975-12-24 1975-06-25 1976-07-07 1976-05-12 1976-08-25 1976-05-26 1977-01-01 1981-11-04 1976-09-01 1977-10-26 1976-10-15 1978-01-25 1978-02-22 1978-02-27 1978-05-25 1978-05-31 1978-09-27