| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Dec 2021 | 11 Jan 2021 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Nov 2020 | 01 Nov 2020 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2020 | 02 Jan 2020 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jul 2019 | 12 Jul 2019 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2019 | 02 Jan 2019 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2018 | 14 Aug 2018 | 000-33385 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2018 | 20 Jun 2018 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jun 2018 | 20 Jun 2018 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2018 | 02 Jan 2018 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jun 2017 | 06 Jun 2017 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2017 | 04 Jan 2017 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2016 | 04 Jan 2016 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jan 2015 | 20 Jan 2015 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Sep 2014 | 17 Sep 2014 | 000-33385 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jan 2014 | 09 Jan 2014 | 000-33385 |