| Date Filed | Type | Description |
| 02/26/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/20/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/21/2014 |
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 |
| 02/23/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/17/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/19/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 02/20/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/03/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/06/2007 |
10-K/A
| Annual Report for the period ended December 31, 2006 [amend] |
| 03/01/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/10/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/15/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/12/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/06/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/05/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/09/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/21/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/09/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/16/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/18/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |
| 03/15/1996 |
10-K
| Annual Report for the period ended December 31, 1995 |
| 02/24/1995 |
10-K
| Annual Report for the period ended December 31, 1994 |