| Date Filed | Type | Description |
| 02/26/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/27/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/28/2014 |
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 |
| 02/27/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/01/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/01/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/02/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 04/29/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/25/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 02/29/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/01/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/28/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/15/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/16/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/29/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/15/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/27/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/29/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/28/2001 |
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 |
| 03/16/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/31/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/28/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |
| 07/23/1996 |
10-K/A
| Annual Report for the period ended December 31, 1995 [amend] |
| 06/18/1996 |
10-K/A
| Annual Report for the period ended December 31, 1995 [amend] |