| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2022 | 14 Mar 2022 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Feb 2022 | 17 Dec 2021 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Nov 2021 | 29 Nov 2021 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 May 2021 | 07 May 2021 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jan 2021 | 07 Jan 2021 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Dec 2020 | 18 Dec 2020 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Dec 2020 | 11 Dec 2020 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Mar 2020 | 06 Mar 2020 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jan 2020 | 09 Jan 2020 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Dec 2019 | 19 Dec 2019 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Aug 2019 | 23 Aug 2019 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jan 2019 | 08 Jan 2019 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2018 | 18 Dec 2018 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2018 | 26 Jan 2018 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2018 | 29 Dec 2017 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Aug 2017 | 21 Aug 2017 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2017 | 22 Feb 2017 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jan 2017 | 13 Jan 2017 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Dec 2016 | 22 Dec 2016 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Dec 2015 | 17 Dec 2015 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Dec 2014 | 24 Dec 2014 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Dec 2014 | 09 Dec 2014 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Sep 2014 | 04 Sep 2014 | 001-13820 |