| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2025 | Feb 28, 2025 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2024 | Feb 23, 2024 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2023 | Feb 24, 2023 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2023 | Feb 13, 2023 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 8, 2022 | Aug 4, 2022 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2022 | Feb 25, 2022 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 24, 2021 | Nov 22, 2021 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 10, 2021 | May 6, 2021 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2021 | Feb 26, 2021 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2020 | Feb 28, 2020 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 26, 2019 | Feb 22, 2019 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2018 | Feb 23, 2018 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2018 | Feb 20, 2018 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2017 | Feb 24, 2017 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2017 | Feb 1, 2017 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 29, 2016 | Feb 26, 2016 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2015 | Nov 17, 2015 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2015 | Feb 20, 2015 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 26, 2014 | Nov 24, 2014 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 31, 2014 | Jul 30, 2014 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 29, 2014 | Apr 29, 2014 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2014 | Feb 21, 2014 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2014 | Feb 20, 2014 | 000-16106 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2014 | Feb 7, 2014 | 000-16106 |