| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2023 | 21 Aug 2023 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Aug 2023 | 15 Aug 2023 | 000-18655 |
| 144 | Open Document | Open Filing | 04 Aug 2023 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2023 | 15 Mar 2023 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2023 | 10 Mar 2023 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Feb 2023 | 07 Feb 2023 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2022 | 11 Mar 2022 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Mar 2022 | 09 Mar 2022 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Aug 2021 | 03 Aug 2021 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2021 | 12 Mar 2021 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2021 | 10 Mar 2021 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Aug 2020 | 18 Aug 2020 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Aug 2020 | 04 Aug 2020 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2020 | 13 Mar 2020 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Mar 2020 | 11 Mar 2020 | 000-18655 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2020 | 03 Jan 2020 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Mar 2019 | 15 Mar 2019 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2019 | 13 Mar 2019 | 000-18655 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2019 | 28 Dec 2018 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2018 | 14 Mar 2018 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Mar 2018 | 09 Mar 2018 | 000-18655 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Feb 2018 | 29 Dec 2017 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jul 2017 | 21 Jul 2017 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2017 | 15 Mar 2017 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2017 | 10 Mar 2017 | 000-18655 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2017 | 30 Dec 2016 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Oct 2016 | 24 Oct 2016 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2016 | 11 Mar 2016 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Mar 2016 | 09 Mar 2016 | 000-18655 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2016 | 01 Jan 2016 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2015 | 13 Mar 2015 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Mar 2015 | 11 Mar 2005 | 000-18655 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2015 | 05 Jan 2015 | 000-18655 |