| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2022 | 18 Feb 2022 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2022 | 17 Feb 2022 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2022 | 16 Feb 2022 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Nov 2021 | 05 Nov 2021 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2021 | 13 May 2021 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2021 | 19 Feb 2021 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2021 | 17 Feb 2021 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Feb 2021 | 12 Feb 2021 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2020 | 16 Nov 2020 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2020 | 14 May 2020 | 001-04482 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2020 | 19 Feb 2020 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2020 | 21 Feb 2020 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2020 | 20 Feb 2020 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2020 | 19 Feb 2020 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Feb 2020 | 19 Feb 2020 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Aug 2019 | 16 Aug 2019 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Aug 2019 | 01 Aug 2019 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2019 | 21 Feb 2019 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2019 | 20 Feb 2019 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2019 | 19 Feb 2019 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Nov 2018 | 06 Nov 2018 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2018 | 14 Aug 2018 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Aug 2018 | 01 Aug 2018 | 001-04482 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2018 | 21 Feb 2018 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2018 | 21 Feb 2018 | 001-04482 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2018 | 20 Feb 2018 | 001-04482 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Aug 2017 | 08 Aug 2017 | 001-04482 |
| 4 | Open Document | Open Filing | 4 | 18 May 2016 | 16 May 2016 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 18 Nov 2015 | 16 Nov 2015 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 19 Nov 2014 | 17 Nov 2014 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 12 Nov 2014 | 10 Nov 2014 | 000-21272 |