| Date Filed | Type | Description |
| 10/31/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 04/29/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/31/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/31/2008 |
AR
| 2007 Annual Report |
| 04/30/2007 |
10-K/A
| Annual Report for the period ended December 31, 2006 [amend] |
| 03/30/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/30/2007 |
AR
| 2006 Annual Report |
| 05/01/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/17/2006 |
AR
| 2005 Annual Report |
| 03/16/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 05/02/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/31/2005 |
AR
| 2004 Annual Report |
| 03/30/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 04/29/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/30/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/30/2004 |
AR
| 2003 Annual Report |
| 03/28/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/28/2003 |
AR
| 2002 Annual Report |
| 04/30/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 04/01/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 06/22/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/30/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/30/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/17/2001 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/22/2000 |
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 |
| 04/10/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 11/10/1997 |
10-K/A
| Annual Report for the period ended December 31, 1996 [amend] |
| 04/30/1997 |
10-K/A
| Annual Report for the period ended December 31, 1996 [amend] |
| 03/31/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |
| 07/03/1996 |
10-K/A
| Annual Report for the period ended December 31, 1995 [amend] |