1996-08-09 2009-07-07 1996-04-01 1993-04-02 1991-06-28 1997-01-15 1989-10-01 2002-04-16 2012-06-15 1985-03-23 1993-09-16 1993-10-13 1990-10-05 1995-05-09 1997-01-01 1989-11-10 2006-10-31 1977-07-31 1996-06-25 1991-03-15 2015-12-31 1986-05-30 2000-10-21 1998-02-12 1991-06-01 2017-05-08 2018-12-15 2000-04-04 1995-08-29 1994-12-14 2008-08-09 1989-08-17 1984-03-01 2003-01-01 2005-01-01