| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Apr 2024 | 10 Apr 2024 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Feb 2024 | 27 Feb 2024 | 000-19807 |
| 144 | Open Document | Open Filing | 27 Feb 2024 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Apr 2023 | 12 Apr 2023 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Aug 2022 | 23 Aug 2022 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Apr 2022 | 12 Apr 2022 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Sep 2021 | 30 Aug 2021 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Apr 2021 | 08 Apr 2021 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Nov 2020 | 11 Nov 2020 | 001-06462 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2020 | 07 May 2020 | 001-06462 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Apr 2020 | 09 Apr 2020 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jul 2019 | 25 Jul 2019 | 001-06462 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jun 2019 | 21 Jun 2019 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2019 | 07 May 2019 | 001-06462 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Apr 2019 | 08 Apr 2019 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 May 2018 | 08 May 2018 | 001-06462 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Apr 2018 | 05 Apr 2018 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2017 | 09 May 2017 | 001-06462 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Apr 2017 | 06 Apr 2017 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2016 | 10 May 2016 | 001-06462 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Mar 2016 | 29 Mar 2016 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2015 | 20 May 2015 | 001-06462 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2015 | 12 May 2015 | 001-06462 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2015 | 02 Apr 2015 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2014 | 20 May 2014 | 001-06462 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2014 | 02 Apr 2014 | 000-19807 |