| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 09 Sep 2021 | 07 Sep 2021 | 001-08519 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2021 | 25 Jan 2021 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2020 | 02 Mar 2020 | 001-08519 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2020 | 30 Jan 2020 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Feb 2020 | 30 Jan 2020 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2020 | 27 Jan 2020 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2019 | 28 Jan 2019 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 May 2018 | 29 May 2018 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2018 | 23 Feb 2018 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2018 | 25 Jan 2018 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2017 | 06 Mar 2017 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2017 | 26 Jan 2017 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jan 2017 | 26 Jan 2017 | 001-08519 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 May 2016 | 22 Feb 2016 | 001-08519 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 May 2016 | 28 Jan 2016 | 001-08519 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 May 2016 | 22 Feb 2016 | 001-08519 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 May 2016 | 28 Jan 2016 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2016 | 22 Feb 2016 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Feb 2016 | 28 Jan 2016 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2015 | 11 May 2015 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2015 | 27 Jan 2015 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Nov 2014 | 07 Nov 2014 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jun 2014 | 02 Jun 2014 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2014 | 31 Jan 2014 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2013 | 11 Dec 2013 | 001-08519 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Aug 2013 | 26 Jul 2013 | 001-08519 |