| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | 17 Oct 2025 | 07 Oct 2025 | 001-38804 | |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2018 | 31 Dec 2017 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2017 | 14 Jul 2017 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Apr 2017 | 14 Apr 2017 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Mar 2017 | 22 Mar 2017 | 000-16211 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2017 | 24 Feb 2017 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2017 | 24 Feb 2017 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2017 | 22 Feb 2017 | 000-16211 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Feb 2017 | 31 Dec 2016 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jan 2017 | 13 Jan 2017 | 000-16211 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Oct 2016 | 25 Feb 2016 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Oct 2016 | 14 Oct 2016 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jul 2016 | 08 Jul 2016 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Apr 2016 | 08 Apr 2016 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2016 | 04 Mar 2016 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2016 | 29 Feb 2016 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Feb 2016 | 25 Feb 2016 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2016 | 17 Feb 2016 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2016 | 08 Jan 2016 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Oct 2015 | 09 Oct 2015 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Aug 2015 | 31 Aug 2015 | 001-04311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Aug 2015 | 06 Aug 2015 | 001-04311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jul 2015 | 10 Jul 2015 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2015 | 07 May 2015 | 001-04311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Apr 2015 | 10 Apr 2015 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Mar 2015 | 27 Mar 2015 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2015 | 21 Feb 2015 | 000-16211 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2015 | 31 Dec 2014 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2015 | 03 Feb 2015 | 001-04311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jan 2015 | 12 Jan 2015 | 001-04311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2015 | 09 Jan 2015 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Dec 2014 | 01 Dec 2014 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Nov 2014 | 06 Nov 2014 | 001-04311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Oct 2014 | 10 Oct 2014 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2014 | 07 Aug 2014 | 001-04311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jul 2014 | 11 Jul 2014 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2014 | 08 May 2014 | 001-04311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Apr 2014 | 11 Apr 2014 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Apr 2014 | 28 Mar 2014 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2014 | 24 Feb 2014 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2014 | 13 Feb 2014 | 001-04311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2014 | 11 Feb 2014 | 000-16211 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 14 Jan 2014 | 10 Jan 2014 | 001-04311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jan 2014 | 10 Jan 2014 | 000-16211 |