| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2025 | 07 May 2025 | 000-19731 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2024 | 08 May 2024 | 000-19731 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2023 | 03 May 2023 | 000-19731 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2022 | 05 May 2022 | 000-19731 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2022 | 03 May 2022 | 000-19731 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2021 | 12 May 2021 | 000-19731 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2021 | 06 May 2021 | 000-19731 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2020 | 06 May 2020 | 000-19731 |
| 4 | Open Document | Open Filing | 13 Apr 2020 | 09 Apr 2020 | 001-38646 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 May 2019 | 08 May 2019 | 000-19731 |
| 3/A | Open Document | Open Filing | 15 Apr 2019 | 01 Jul 2018 | 001-38196 | |
| 4/A | Open Document | Open Filing | 15 Apr 2019 | 01 Apr 2019 | 001-38646 | |
| 4 | Open Document | Open Filing | 15 Apr 2019 | 11 Apr 2019 | 001-38646 | |
| 4 | Open Document | Open Filing | 03 Apr 2019 | 01 Apr 2019 | 001-38646 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 03 Apr 2019 | 01 Apr 2019 | 001-38646 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Feb 2019 | 31 Jan 2019 | 000-19731 |
| 3 | Open Document | Open Filing | 06 Jul 2018 | 01 Jul 2018 | 001-38196 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2018 | 09 May 2018 | 000-19731 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2018 | 31 Jan 2018 | 000-19731 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Feb 2018 | 31 Jan 2018 | 000-19731 |
| 4 | Open Document | Open Filing | 05 Sep 2017 | 31 Aug 2017 | 001-03433 | |
| 4 | Open Document | Open Filing | 16 May 2017 | 12 May 2017 | 001-03433 | |
| 4 | Open Document | Open Filing | 07 Nov 2016 | 03 Nov 2016 | 001-03433 | |
| 4 | Open Document | Open Filing | 17 May 2016 | 13 May 2016 | 001-03433 | |
| 4 | Open Document | Open Filing | 24 Feb 2016 | 22 Feb 2016 | 001-03433 | |
| 4 | Open Document | Open Filing | 19 May 2015 | 15 May 2015 | 001-03433 | |
| 4 | Open Document | Open Filing | 05 Jun 2014 | 03 Jun 2014 | 001-03433 | |
| 4 | Open Document | Open Filing | 20 May 2014 | 16 May 2014 | 001-03433 | |
| 4 | Open Document | Open Filing | 11 Feb 2014 | 07 Feb 2014 | 001-03433 | |
| 4 | Open Document | Open Filing | 14 May 2013 | 10 May 2013 | 001-03433 | |
| 4 | Open Document | Open Filing | 15 Feb 2013 | 14 Feb 2013 | 001-03433 | |
| 4 | Open Document | Open Filing | 07 Mar 2012 | 05 Mar 2012 | 001-03433 | |
| 4 | Open Document | Open Filing | 22 Feb 2012 | 21 Feb 2012 | 001-03433 |