| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2022 | 31 Jan 2022 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Feb 2022 | 30 Jan 2022 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Nov 2021 | 01 Nov 2021 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Aug 2021 | 30 Jul 2021 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2021 | 28 May 2021 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2021 | 30 Apr 2021 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2021 | 30 Jan 2021 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Nov 2020 | 30 Oct 2020 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Jul 2020 | 30 Jul 2020 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2020 | 01 Jul 2020 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2020 | 30 Apr 2020 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Apr 2020 | 07 Apr 2020 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2020 | 02 Mar 2020 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2020 | 03 Feb 2020 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Feb 2020 | 30 Jan 2020 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Nov 2019 | 01 Nov 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Nov 2019 | 30 Oct 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Aug 2019 | 01 Aug 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Aug 2019 | 30 Jul 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2019 | 01 May 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 May 2019 | 30 Apr 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2019 | 03 Apr 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2019 | 25 Feb 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2019 | 01 Feb 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Feb 2019 | 30 Jan 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2019 | 25 Jan 2019 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Nov 2018 | 01 Nov 2018 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Nov 2018 | 30 Oct 2018 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Oct 2018 | 25 Oct 2018 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Aug 2018 | 01 Aug 2018 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Aug 2018 | 30 Jul 2018 | 000-06217 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jul 2018 | 25 Jul 2018 | 000-06217 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2018 | 16 May 2018 | 000-06217 |