| Date Filed | Type | Description |
| 03/18/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/13/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/28/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/29/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/16/2010 |
10-K
| Annual Report for the period ended March 16, 2010 |
| 03/16/2009 |
10-K
| Annual Report for the period ended March 16, 2009 |
| 03/17/2008 |
10-K
| Annual Report for the period ended March 17, 2008 |
| 03/19/2007 |
AR
| 2006 Annual Report |
| 03/16/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/14/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/14/2006 |
AR
| 2005 Annual Report |
| 03/31/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/16/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/16/2005 |
AR
| 2004 Annual Report |
| 03/15/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/15/2004 |
AR
| 2003 Annual Report |
| 03/31/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/31/2003 |
AR
| 2002 Annual Report |
| 03/29/2002 |
AR
| 2001 Annual Report |
| 03/29/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/22/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/22/2001 |
AR
| 2000 Annual Report |
| 03/30/2000 |
AR
| 1999 Annual Report |
| 03/30/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/31/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/30/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/27/1997 |
10-K
| Annual Report for the period ended December 28, 1996 |
| 03/29/1996 |
10-K
| Annual Report for the period ended December 30, 1995 |
| 03/29/1995 |
10-K
| Annual Report for the period ended December 31, 1994 |