| Date Filed | Type | Description |
| 04/28/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 03/31/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/12/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 01/28/2010 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 12/21/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/13/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/17/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/16/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/16/2007 |
AR
| 2006 Annual Report |
| 03/31/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/31/2006 |
AR
| 2005 Annual Report |
| 06/07/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 05/02/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/18/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/18/2005 |
AR
| 2004 Annual Report |
| 03/23/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/23/2004 |
AR
| 2003 Annual Report |
| 02/28/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 02/21/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 04/04/2001 |
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 |