| Date Filed | Type | Description |
| 03/11/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/13/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/14/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/14/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/12/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 04/25/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 03/04/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/08/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/13/2009 |
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 |
| 03/03/2008 |
AR
| 2007 Summary Annual Report |
| 03/06/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/06/2007 |
AR
| 2006 Summary Annual Report |
| 03/13/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/13/2006 |
AR
| 2005 Summary Annual Report |
| 03/31/2005 |
AR
| 2004 Annual Report - Full Report |
| 03/31/2005 |
AR
| 2004 Annual Report - Editorial |
| 03/30/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |