| Date Filed | Type | Description |
| 04/21/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/30/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 04/30/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 04/16/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 07/25/2003 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 05/15/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 05/20/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 04/22/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 04/30/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/20/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 05/01/2000 |
10-K/A
| Annual Report for the period ended December 31, 1999 [amend] |
| 04/14/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 04/30/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 03/31/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 07/06/1998 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 04/30/1998 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 03/31/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 04/30/1997 |
10-K/A
| Annual Report for the period ended December 31, 1996 [amend] |
| 03/06/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |