| Date Filed | Type | Description |
| 02/13/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 02/08/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 02/03/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 02/09/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/06/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/11/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/07/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/07/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/11/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/11/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 02/19/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/27/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/15/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 05/26/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/31/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/31/2005 |
AR
| 2004 Annual Report - PDF |
| 03/15/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/15/2004 |
AR
| 2003 Annual Report - PDF |
| 03/20/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/20/2003 |
AR
| 2002 Annual Report - PDF |
| 03/22/2002 |
AR
| 2001 Annual Report - PDF |
| 03/22/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/19/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/20/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/22/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/20/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/21/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |
| 03/22/1996 |
10-K
| Annual Report for the period ended December 31, 1995 |
| 03/24/1995 |
10-K
| Annual Report for the period ended December 31, 1994 |
| 03/22/1994 |
10-K
| Annual Report for the period ended December 31, 1993 |