| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jun 2022 | 01 Jun 2022 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2022 | 18 May 2022 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Apr 2021 | 27 Apr 2021 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Dec 2020 | 14 Dec 2020 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jul 2020 | 28 Jul 2020 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jul 2020 | 09 Jul 2020 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Apr 2020 | 28 Apr 2020 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 May 2019 | 22 May 2019 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2019 | 04 Feb 2019 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2018 | 24 May 2018 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2018 | 02 May 2018 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2018 | 01 May 2018 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2017 | 02 May 2017 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2016 | 18 May 2016 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2016 | 03 May 2016 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Apr 2015 | 28 Apr 2015 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2014 | 27 Feb 2014 | 000-23877 |