Mar 31, 1984

Dec 31, 1986

Dec 31, 1988

Dec 31, 1997

Jan 01, 2000

Feb 24, 2002

Feb 04, 2003

Jun 20, 2003

Sep 26, 2003

Mar 19, 2004

May 30, 2004

Dec 31, 2005

Apr 03, 2009

Oct 27, 2009

Sep 17, 2010

Mar 21, 2013

TBD