| Date Filed | Type | Description |
| 02/25/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/25/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/03/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/06/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/09/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/04/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/05/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/10/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/28/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/16/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/14/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/07/2005 |
AR
| 2004 Annual Report |
| 03/04/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/11/2004 |
AR
| 2003 Annual Report |
| 03/10/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/21/2003 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 03/10/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/10/2003 |
AR
| 2002 Annual Report |
| 03/07/2002 |
AR
| 2001 Annual Report |
| 03/07/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 05/10/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/03/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 03/20/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/20/2001 |
AR
| 2000 Annual Report |
| 03/28/2000 |
AR
| 1999 Annual Report |
| 03/28/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/30/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/30/1999 |
AR
| 1998 Annual Report |
| 03/31/1998 |
AR
| 1997 Annual Report |
| 03/31/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |