| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2022 | 17 Feb 2022 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Feb 2022 | 07 Feb 2022 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2021 | 22 Feb 2021 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2021 | 18 Feb 2021 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Feb 2021 | 05 Feb 2021 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2020 | 19 Feb 2020 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2020 | 09 Feb 2020 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Aug 2019 | 02 Aug 2019 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2019 | 11 Feb 2019 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2019 | 08 Feb 2019 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2018 | 22 Feb 2018 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2018 | 18 Feb 2018 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2017 | 18 Feb 2017 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2017 | 09 Feb 2017 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 May 2016 | 06 May 2016 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Feb 2016 | 11 Feb 2016 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Mar 2015 | 05 Mar 2015 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2015 | 22 Feb 2015 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Feb 2015 | 18 Feb 2015 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2015 | 11 Feb 2015 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2015 | 06 Feb 2015 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2014 | 22 Feb 2014 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Feb 2014 | 18 Feb 2014 | 001-11840 |