| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 May 2025 | 21 May 2025 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2024 | 22 May 2024 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2023 | 24 May 2023 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2022 | 25 May 2022 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2022 | 01 Nov 2011 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2022 | 01 Sep 2011 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2022 | 01 Aug 2011 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 May 2021 | 26 May 2021 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jun 2020 | 17 Jun 2020 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2019 | 22 May 2019 | 000-14237 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2018 | 24 May 2018 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2018 | 02 May 2018 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2018 | 24 May 2018 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2017 | 24 May 2017 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 May 2016 | 25 May 2016 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 May 2015 | 27 May 2015 | 000-14237 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 May 2014 | 28 May 2014 | 000-14237 |