| Date Filed | Type | Description |
| 03/10/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/14/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/14/2008 |
AR
| 2007 Annual Report |
| 03/16/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/16/2007 |
AR
| 2006 Annual Report Brochure |
| 08/17/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/16/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 01/03/2006 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 04/29/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/25/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 11/10/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/19/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 08/15/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 06/06/2003 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 03/29/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 04/10/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/02/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 05/26/2000 |
10-K/A
| Annual Report for the period ended December 31, 1999 [amend] |
| 05/01/2000 |
10-K/A
| Annual Report for the period ended December 31, 1999 [amend] |
| 03/30/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 04/30/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 03/31/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 04/20/1998 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 03/31/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |