| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Sep 2023 | 20 Sep 2023 | 000-16435 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Aug 2023 | 16 Aug 2023 | 000-16435 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jul 2023 | 23 Jun 2023 | 000-16435 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2023 | 12 May 2023 | 000-16435 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2023 | 04 May 2023 | 000-16435 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2023 | 24 Mar 2023 | 000-16435 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Sep 2022 | 23 Sep 2022 | 000-16435 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2022 | 23 May 2022 | 000-16435 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Mar 2022 | 22 Mar 2022 | 000-16435 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jan 2021 | 31 Dec 2020 | 000-16435 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2020 | 31 Dec 2019 | 000-16435 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2019 | 31 Dec 2018 | 000-16435 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jan 2017 | 31 Dec 2016 | 000-16435 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jan 2017 | 31 Dec 2016 | 000-16435 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jan 2017 | 31 Dec 2016 | 000-16435 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Jan 2016 | 31 Dec 2015 | 000-16435 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2015 | 31 Dec 2014 | 000-16435 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2014 | 31 Dec 2013 | 000-16435 |