| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 5/A | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jan 2022 | 31 Dec 2021 | 000-14384 |
| 5/A | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2022 | 31 Dec 2021 | 000-14384 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2022 | 31 Dec 2017 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2021 | 05 Mar 2021 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Oct 2019 | 29 Oct 2019 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2018 | 15 May 2018 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Nov 2016 | 15 Nov 2016 | 000-14384 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2016 | 17 Dec 2015 | 000-14384 |