1979-12-07 1982-06-04 1984-06-01 1986-11-26 1989-06-09 1991-12-06 1994-11-18 1989-04-28 1974-01-23 2003-11-22 1996-10-01 2006-01-01 2012-05-18 2003-06-23 2013-02-16 1983-01-01 2020-08-01 1971-10-22 1995-01-01 2005-11-13 2016-08-14 2016-09-09 2017-04-11 1991-09-28 2017-02-02 1986-01-01 1994-11-30 2014-08-22 2018-04-20 2004-01-01 2008-02-15 2006-01-01 1997-10-18 2012-08-31 2008-01-19