1977-02-01 1976-02-01 1977-12-01 1976-02-01 1977-08-09 2011-01-14 1983-09-02 1982-09-01 1981-05-01 1975-04-01 1981-07-08 1979-01-01 1977-01-01 1978-10-01 1984-08-31 1982-10-01 1975-09-07 1985-09-04 1985-11-10 1981-03-01 1985-02-04 1983-03-01 2007-03-16 1985-07-21 1985-03-08 2016-02-05 1983-02-01 2016-01-22 1975-04-04 2006-01-06 1976-01-01 1976-01-01 2014-11-21 1976-09-07 1981-11-09