| Date Filed | Type | Description |
| 06/03/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 09/02/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/10/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/18/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/07/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/08/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 08/18/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/24/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 04/13/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/29/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/12/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/31/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/28/2002 |
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 |
| 03/28/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 04/12/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 04/29/1998 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 04/01/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |