| 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 | 28 Sep 2020 | 24 Sep 2020 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2020 | 02 Mar 2020 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jan 2020 | 24 Jan 2020 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Dec 2019 | 23 Dec 2019 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Sep 2019 | 10 Sep 2019 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2019 | 02 May 2019 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2019 | 28 Jan 2019 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2018 | 01 May 2018 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2018 | 25 Jan 2018 | 001-08519 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2018 | 31 Dec 2017 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jan 2017 | 26 Jan 2017 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2017 | 03 Jan 2017 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Dec 2016 | 29 Nov 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 | 04 Jan 2016 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2016 | 04 Jan 2016 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Dec 2015 | 04 Dec 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 | 07 Jan 2015 | 06 Jan 2015 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2015 | 02 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 Feb 2014 | 31 Jan 2014 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jan 2014 | 06 Jan 2014 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2014 | 03 Jan 2014 | 001-08519 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2014 | 02 Jan 2014 | 001-08519 |