| Date Filed | Type | Description |
| 03/02/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/27/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/28/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/28/2012 |
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 |
| 04/23/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 02/25/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/02/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 02/25/2009 |
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 |
| 02/28/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 02/28/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/09/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/11/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/10/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/11/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 02/28/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/16/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 06/08/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 03/24/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/06/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/07/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |
| 03/08/1996 |
10-K
| Annual Report for the period ended December 31, 1995 |
| 03/23/1995 |
10-K
| Annual Report for the period ended December 31, 1994 |