| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 18, 2023 | Apr 14, 2023 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2023 | Mar 7, 2023 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 7, 2023 | Mar 3, 2023 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 13, 2023 | Jan 13, 2023 | 000-16211 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 28, 2022 | Nov 16, 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 17, 2022 | Nov 16, 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 18, 2022 | Oct 14, 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 11, 2022 | Jul 8, 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2022 | May 6, 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 11, 2022 | Apr 8, 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2022 | Mar 4, 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 19, 2022 | Jan 14, 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 9, 2021 | Nov 5, 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 12, 2021 | Oct 8, 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 13, 2021 | Jul 9, 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 11, 2021 | May 7, 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 12, 2021 | Apr 9, 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2021 | Mar 4, 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 12, 2021 | Jan 8, 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 13, 2020 | Oct 9, 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 10, 2020 | Jul 10, 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2020 | May 19, 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 11, 2020 | May 7, 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 14, 2020 | Apr 10, 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 6, 2020 | Mar 4, 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 14, 2020 | Jan 10, 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 16, 2019 | Oct 11, 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 16, 2019 | Jul 12, 2019 | 000-16211 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2019 | May 22, 2019 | 000-16211 |