| Date Filed | Type | Description |
| 04/01/2008 |
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 |
| 03/09/2006 |
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 |
| 03/05/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/03/2003 |
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 |
| 03/09/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/07/2000 |
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 |
| 03/20/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/14/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |
| 08/06/1996 |
10-K/A
| Annual Report for the period ended December 31, 1995 [amend] |
| 03/22/1996 |
10-K
| Annual Report for the period ended December 31, 1995 |
| 03/31/1995 |
10-K
| Annual Report for the period ended December 31, 1994 |
| 02/02/1995 |
10-K/A
| Annual Report for the period ended January 31, 1995 [amend] |