| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jun 2021 | 24 Jun 2021 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jun 2021 | 22 Jun 2021 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2021 | 04 Jan 2021 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2020 | 02 Jan 2020 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Oct 2019 | 29 Oct 2019 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2019 | 02 Jan 2019 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2018 | 02 Jan 2018 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2017 | 03 Jan 2017 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2016 | 04 Jan 2016 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2015 | 02 Jan 2015 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2014 | 03 Jan 2014 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2013 | 02 Jan 2013 | 001-13461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | 001-13461 |