| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Sep 2022 | 31 Aug 2022 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2022 | 01 Apr 2022 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2022 | 01 Apr 2022 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2021 | 01 Apr 2021 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Mar 2021 | 19 Mar 2021 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2020 | 01 Apr 2020 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Mar 2020 | 19 Mar 2020 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2019 | 01 Apr 2019 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Mar 2019 | 20 Mar 2019 | 000-12508 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2019 | 31 Dec 2018 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Mar 2018 | 19 Mar 2018 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Apr 2017 | 06 Apr 2017 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Mar 2017 | 20 Mar 2017 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Mar 2016 | 21 Mar 2016 | 000-12508 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Mar 2015 | 16 Mar 2015 | 000-12508 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2015 | 12 Jan 2015 | 000-12508 |