| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Oct 2021 | 01 Oct 2021 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Apr 2021 | 19 Apr 2021 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Oct 2020 | 24 Oct 2020 | 001-07665 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Aug 2020 | 14 May 2020 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2020 | 14 May 2020 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Apr 2020 | 23 Apr 2020 | 001-07665 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Oct 2019 | 26 Oct 2019 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Oct 2019 | 26 Oct 2019 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Apr 2019 | 26 Apr 2019 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Oct 2018 | 27 Oct 2018 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Sep 2018 | 20 Sep 2018 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jun 2018 | 22 Jun 2018 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2018 | 31 Dec 2017 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jul 2017 | 30 Jun 2017 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2017 | 31 Dec 2016 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jul 2016 | 30 Jun 2016 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 May 2016 | 19 May 2016 | 000-26946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 May 2016 | 13 May 2016 | 001-11257 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2016 | 01 Mar 2016 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2016 | 31 Dec 2015 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Aug 2015 | 07 Aug 2015 | 001-11257 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2015 | 30 Jun 2015 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jun 2015 | 03 Jun 2015 | 001-11257 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jun 2015 | 04 Jun 2015 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2015 | 07 May 2015 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Mar 2015 | 17 Mar 2015 | 001-11257 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2015 | 09 Mar 2015 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2015 | 04 Mar 2015 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2015 | 31 Dec 2014 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2014 | 30 Jun 2014 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jun 2014 | 04 Jun 2014 | 001-11257 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2014 | 16 May 2014 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2014 | 15 May 2014 | 000-26946 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2014 | 12 May 2014 | 000-26946 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2014 | 30 Jun 2011 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2014 | 31 Dec 2013 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Aug 2013 | 09 Aug 2013 | 001-07665 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Aug 2013 | 07 Aug 2013 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Aug 2013 | 02 Aug 2013 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2013 | 30 Jun 2013 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2013 | 30 May 2013 | 001-11257 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2013 | 27 Feb 2013 | 001-11257 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2013 | 31 Dec 2012 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2012 | 30 Jun 2012 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2012 | 04 May 2012 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2012 | 31 Dec 2011 | 001-07665 |