| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jan 2022 | 06 Jan 2022 | 000-32891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2021 | 27 May 2021 | 000-32891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2020 | 01 Jun 2020 | 000-32891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 May 2020 | 21 May 2020 | 000-32891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2019 | 30 May 2019 | 000-32891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 May 2018 | 30 May 2018 | 000-32891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 May 2018 | 24 May 2018 | 000-32891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 May 2017 | 25 May 2017 | 000-32891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Dec 2016 | 29 Nov 2016 | 000-32891 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Aug 2016 | 04 Aug 2016 | 000-32891 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jun 2016 | 20 Jun 2016 | 000-32891 |