| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2024 | 07 May 2024 | 000-23621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2023 | 16 May 2023 | 000-23621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2022 | 10 May 2022 | 000-23621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2021 | 11 May 2021 | 000-23621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2020 | 11 May 2020 | 000-23621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2019 | 08 May 2019 | 000-23621 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2019 | 08 May 2019 | 000-23621 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Apr 2019 | 24 Apr 2019 | 001-08864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2019 | 13 Feb 2019 | 001-08864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Dec 2018 | 26 Dec 2018 | 001-08864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2018 | 02 Oct 2018 | 001-08864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Feb 2018 | 14 Feb 2018 | 001-08864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Feb 2017 | 08 Feb 2017 | 001-08864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2016 | 10 Feb 2016 | 001-08864 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2016 | 04 Jan 2016 | 001-08864 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2016 | 01 Jan 2016 | 001-08864 |