| Date Filed | Type | Description |
| 03/31/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/25/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/30/2007 |
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 |
| 06/10/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 05/04/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 04/11/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/31/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 12/10/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 09/09/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/12/2004 |
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 |
| 03/01/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/19/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/22/2000 |
10-K/A
| Annual Report for the period ended December 31, 1999 [amend] |
| 03/20/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/29/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/27/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/31/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/31/1997 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |