| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2022 | Mar 15, 2022 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2022 | Feb 18, 2022 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 27, 2021 | May 25, 2021 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2021 | May 17, 2021 | 001-05256 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2021 | Apr 3, 2021 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2020 | Nov 11, 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2020 | Jun 5, 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2020 | May 19, 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2020 | May 11, 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2020 | Feb 21, 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 30, 2019 | Aug 29, 2019 | 001-05256 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 28, 2019 | May 24, 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2019 | May 30, 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 29, 2019 | May 24, 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 14, 2019 | May 13, 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2019 | Feb 11, 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 15, 2018 | Aug 14, 2018 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2018 | Feb 21, 2018 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2018 | Feb 12, 2018 | 001-05256 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Dec 30, 2017 | 001-05256 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Jan 3, 2018 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 27, 2017 | Oct 26, 2017 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2017 | Feb 22, 2017 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 15, 2017 | Feb 13, 2017 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2016 | Feb 23, 2016 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2016 | Feb 15, 2016 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 11, 2015 | Dec 4, 2015 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 10, 2015 | Aug 7, 2015 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2015 | Feb 18, 2015 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2015 | Feb 9, 2015 | 001-05256 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Jan 3, 2015 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2014 | Oct 31, 2014 | 001-05256 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 24, 2014 | Jul 1, 2014 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2014 | Jul 1, 2014 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2014 | Feb 19, 2014 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2014 | Feb 10, 2014 | 001-05256 |