| Date Filed | Type | Description |
| 03/15/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/11/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/11/2011 |
10-KT
| Form 10-KT - Transition reports [Rule 13a-10 or 15d-10] |
| 03/12/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/11/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/17/2008 |
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 |
| 03/16/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 02/28/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/15/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/28/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 09/27/2002 |
10-K
| Annual Report for the period ended June 30, 2002 |
| 09/21/2001 |
10-K
| Annual Report for the period ended June 30, 2001 |
| 09/28/2000 |
10-K
| Annual Report for the period ended June 30, 2000 |
| 09/29/1999 |
10-K
| Annual Report for the period ended June 30, 1999 |
| 10/01/1998 |
10-K
| Annual Report for the period ended June 30, 1998 |
| 09/25/1997 |
10-K
| Annual Report for the period ended June 30, 1997 |
| 09/30/1996 |
10-K
| Annual Report for the period ended June 30, 1996 |