| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2021 | 27 Aug 2021 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Apr 2021 | 31 Mar 2021 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2021 | 16 Mar 2021 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2021 | 15 Mar 2021 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2021 | 15 Mar 2021 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Nov 2020 | 24 Nov 2020 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Nov 2020 | 11 Nov 2020 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2020 | 30 Jun 2020 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Apr 2020 | 31 Mar 2020 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2020 | 16 Mar 2020 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2020 | 16 Mar 2020 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2020 | 16 Mar 2020 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2019 | 19 Dec 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2019 | 19 Dec 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2019 | 19 Dec 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2019 | 19 Dec 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2019 | 19 Dec 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2019 | 19 Dec 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2019 | 21 Aug 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2019 | 21 Aug 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2019 | 30 Jun 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Apr 2019 | 31 Mar 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Mar 2019 | 15 Mar 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Mar 2019 | 15 Mar 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Mar 2019 | 15 Mar 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2019 | 15 Mar 2019 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Oct 2018 | 31 May 2018 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jul 2018 | 29 Jun 2018 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2018 | 31 Mar 2018 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Mar 2018 | 16 Mar 2018 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Mar 2018 | 15 Mar 2018 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Mar 2018 | 15 Mar 2018 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Mar 2018 | 15 Mar 2018 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2018 | 16 Mar 2018 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Oct 2017 | 29 Sep 2017 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jul 2017 | 30 Jun 2017 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Apr 2017 | 24 Apr 2017 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2017 | 31 Mar 2017 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Mar 2017 | 20 Mar 2017 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Mar 2017 | 15 Mar 2017 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2016 | 30 Sep 2016 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2016 | 01 Jul 2016 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Apr 2016 | 04 Apr 2016 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Apr 2016 | 31 Mar 2016 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2016 | 15 Mar 2016 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2015 | 06 Nov 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2015 | 06 Nov 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2015 | 06 Nov 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2015 | 06 Nov 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Oct 2015 | 30 Sep 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Aug 2015 | 19 Aug 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2015 | 30 Jun 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Apr 2015 | 31 Mar 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Mar 2015 | 23 Mar 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Mar 2015 | 17 Mar 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2015 | 15 Mar 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2015 | 15 Mar 2015 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2015 | 31 Dec 2014 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2014 | 13 Nov 2014 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 30 Sep 2014 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2014 | 30 Jun 2014 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Apr 2014 | 31 Mar 2014 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Mar 2014 | 15 Mar 2014 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2014 | 31 Dec 2013 | 000-28274 |