| Date Filed | Type | Description |
| 02/22/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/26/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/02/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/29/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 06/27/2007 |
10-K/A
| Annual Report for the period ended December 31, 2006 [amend] |
| 03/01/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/16/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/25/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/17/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/16/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/15/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/27/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/28/2002 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/28/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 04/25/2000 |
10-K/A
| Annual Report for the period ended December 31, 1999 [amend] |
| 03/28/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/25/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/26/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/26/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/28/1996 |
10-K
| Annual Report for the period ended December 31, 1995 |
| 03/30/1995 |
10-K
| Annual Report for the period ended December 31, 1994 |
| 08/24/1994 |
10-K/A
| Annual Report for the period ended December 31, 1993 [amend] |
| 03/30/1994 |
10-K
| Annual Report for the period ended December 31, 1993 |