| Date Filed | Type | Description |
| 03/28/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/25/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/26/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/31/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 04/02/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/29/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/29/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 09/08/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 08/10/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 05/07/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 04/14/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 04/08/2003 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 03/31/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 06/27/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 06/14/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 04/01/2002 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 04/11/2001 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |
| 04/09/2001 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 10/02/2000 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |
| 04/06/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/31/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 04/02/1998 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |
| 03/30/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 04/01/1997 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |
| 03/31/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/19/1996 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 08/15/1995 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |