| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 5 | Open Document | Open Filing | FORM 5 | 14 Feb 2022 | 31 Dec 2021 | 000-03722 |
| 5 | Open Document | Open Filing | FORM 5 | 16 Feb 2021 | 31 Dec 2020 | 000-03722 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Sep 2019 | 04 Sep 2019 | 000-03722 |
| 5 | Open Document | Open Filing | FORM 5 | 25 Jan 2017 | 31 Dec 2016 | 000-03722 |
| 4 | Open Document | Open Filing | FORM 4 | 05 May 2016 | 03 May 2016 | 000-03722 |