| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2025 | 28 Feb 2025 | 000-16255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2024 | 29 Feb 2024 | 000-16255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2023 | 02 Mar 2023 | 000-16255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2022 | 25 Feb 2022 | 000-16255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2021 | 26 Feb 2021 | 000-16255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2020 | 28 Feb 2020 | 000-16255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2019 | 01 Mar 2019 | 000-16255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Nov 2018 | 01 Nov 2018 | 001-33145 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2018 | 02 Mar 2018 | 000-16255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Nov 2017 | 01 Nov 2017 | 001-33145 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2017 | 03 Mar 2017 | 000-16255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Nov 2016 | 01 Nov 2016 | 001-33145 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2016 | 03 Mar 2016 | 000-16255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2016 | 03 Mar 2016 | 000-16255 |
| 4 | Open Document | Open Filing | 30 Oct 2015 | 28 Oct 2015 | 001-33145 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2015 | 27 Feb 2015 | 000-16255 |
| 4 | Open Document | Open Filing | 30 Oct 2014 | 29 Oct 2014 | 001-33145 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Sep 2014 | 10 Sep 2014 | 000-16255 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Sep 2014 | 10 Sep 2014 | 000-16255 |
| 4 | Open Document | Open Filing | 01 Nov 2013 | 30 Oct 2013 | 001-33145 | |
| 4 | Open Document | Open Filing | 01 Oct 2013 | 30 Sep 2013 | 001-33145 | |
| 4 | Open Document | Open Filing | 26 Apr 2013 | 25 Apr 2013 | 001-33145 | |
| 3 | Open Document | Open Filing | 05 Mar 2013 | 05 Mar 2013 | 001-33145 |