| Date Filed | Type | Description |
| 02/23/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
| 02/18/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 02/13/2020 |
10-K/A
| Annual Report for the period ended December 31, 2019 [amend] |
| 02/10/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 02/21/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 02/15/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 02/23/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 02/23/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/18/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/19/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/25/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/21/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/25/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/17/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/02/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/29/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 02/29/2008 |
AR
| Annual Report 2007 |
| 03/16/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/10/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 06/21/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/16/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/03/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/03/2004 |
AR
| Annual Report 2003 |
| 03/07/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/07/2003 |
AR
| Annual Report 2002 |
| 04/12/2001 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/28/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/11/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/09/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 02/28/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/12/1996 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 08/24/1995 |
10-K/A
| Annual Report for the period ended December 31, 1994 [amend] |
| 03/27/1995 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 05/27/1994 |
10-K/A
| Annual Report for the period ended December 31, 1993 [amend] |