| Date Filed | Type | Description |
| 02/24/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/22/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/29/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/28/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/25/2010 |
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 |
| 02/22/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/01/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 12/07/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/03/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/04/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/02/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 02/25/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/14/2003 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 03/12/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 02/21/2003 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 11/20/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 03/27/2002 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 08/31/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/23/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/16/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 06/27/2000 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 06/27/2000 |
10-K/A
| Annual Report for the period ended December 31, 1995 [amend] |
| 06/27/2000 |
10-K/A
| Annual Report for the period ended December 31, 1996 [amend] |
| 04/19/2000 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 04/19/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/31/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/26/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 04/08/1997 |
10-K/A
| Annual Report for the period ended December 31, 1996 [amend] |
| 03/27/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |
| 03/28/1996 |
10-K
| Annual Report for the period ended December 31, 1995 |
| 03/28/1995 |
10-K
| Annual Report for the period ended December 31, 1994 |