| Date Filed | Type | Description |
| 03/15/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/05/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/16/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/31/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/17/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/01/2007 |
AR
| 2006 Annual Report |
| 02/28/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 08/07/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/14/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/14/2006 |
AR
| 2005 Annual Report |
| 03/11/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/11/2005 |
AR
| 2004 Annual Report |
| 01/07/2005 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 01/07/2005 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/15/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/15/2004 |
AR
| 2003 Annual Report |
| 08/07/2003 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 03/28/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/28/2003 |
AR
| 2002 Annual Report |
| 04/01/2002 |
AR
| 2001 Annual Report (pg. 1-12) |
| 04/01/2002 |
AR
| 2001 Annual Report (pg. 13-57) |
| 04/01/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 04/02/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/30/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/30/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/27/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/31/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |