| Date Filed | Type | Description |
| 05/02/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 03/16/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 07/06/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 04/30/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/12/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 04/30/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/11/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 04/29/2008 |
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 |
| 08/31/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 07/05/2007 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/25/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/25/2003 |
AR
| 2002 Annual Report |
| 03/22/2002 |
AR
| 2001 Annual Report |
| 03/22/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/26/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/26/2001 |
AR
| 2000 Annual Report |
| 03/29/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/26/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 03/25/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/25/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/28/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |
| 05/23/1996 |
10-K/A
| Annual Report for the period ended December 31, 1995 [amend] |
| 05/20/1996 |
10-K/A
| Annual Report for the period ended December 31, 1995 [amend] |
| 05/10/1996 |
10-K/A
| Annual Report for the period ended December 31, 1995 [amend] |