| Date Filed | Type | Description |
| 04/30/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/31/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/21/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 04/02/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/31/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 06/23/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/30/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 04/21/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/30/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/30/2004 |
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 |
| 04/05/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 03/29/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/29/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/17/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 04/15/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/31/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/31/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |