| Date Filed | Type | Description |
| 02/28/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 04/15/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 02/20/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/22/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/23/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/17/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 02/18/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/20/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 02/27/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/15/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 08/11/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 02/28/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 08/27/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 04/07/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/12/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/26/2003 |
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] |
| 06/15/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 03/30/2001 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/15/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 05/25/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 05/14/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 03/19/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/19/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/14/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/29/1996 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 04/13/1995 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/25/1994 |
10-K
| Annual Report for the period ended December 31, 1993 |