| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jan 2022 | 14 Jan 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Nov 2021 | 05 Nov 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Oct 2021 | 08 Oct 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jul 2021 | 09 Jul 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Apr 2021 | 09 Apr 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Mar 2021 | 25 Mar 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2021 | 12 Mar 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2021 | 04 Mar 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2021 | 08 Jan 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Oct 2020 | 09 Oct 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jul 2020 | 10 Jul 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2020 | 19 May 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Apr 2020 | 10 Apr 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Mar 2020 | 19 Mar 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2020 | 12 Mar 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2020 | 04 Mar 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jan 2020 | 10 Jan 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Oct 2019 | 11 Oct 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2019 | 12 Jul 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2019 | 07 May 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Apr 2019 | 12 Apr 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2019 | 12 Mar 2019 | 000-16211 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jan 2019 | 21 Jan 2019 | 000-16211 |