| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2024 | 01 Jan 2024 | 000-06920 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Dec 2023 | 11 Dec 2023 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2022 | 01 Jun 2022 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2022 | 01 Jan 2022 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Dec 2021 | 02 Dec 2021 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2021 | 30 Sep 2021 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2021 | 01 Jun 2021 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2021 | 01 Jan 2021 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Dec 2020 | 03 Dec 2020 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2020 | 01 Jun 2020 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2020 | 01 Jan 2020 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Dec 2019 | 05 Dec 2019 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2019 | 11 May 2019 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2019 | 01 Jan 2019 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Dec 2018 | 06 Dec 2018 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2018 | 01 Jan 2018 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Dec 2017 | 14 Dec 2017 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2017 | 01 Oct 2017 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2017 | 01 Jan 2017 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Dec 2016 | 01 Dec 2016 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2016 | 01 Oct 2016 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2016 | 01 Jan 2016 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Dec 2015 | 07 Dec 2015 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Oct 2015 | 01 Oct 2015 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Dec 2014 | 08 Dec 2014 | 000-06920 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | 000-06920 |