| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Sep 2021 | 26 Aug 2021 | 001-08703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Sep 2021 | 03 Sep 2021 | 001-08703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Aug 2021 | 27 Aug 2021 | 001-08703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Apr 2021 | 22 Apr 2021 | 001-08703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Sep 2020 | 03 Sep 2020 | 001-08703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Apr 2020 | 22 Apr 2020 | 001-08703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Apr 2020 | 17 Apr 2020 | 001-08703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2020 | 21 Jan 2020 | 001-08703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Oct 2019 | 22 Oct 2019 | 001-08703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Sep 2019 | 04 Sep 2019 | 001-08703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jul 2019 | 15 Jul 2019 | 001-08703 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2019 | 09 May 2019 | 001-08703 |
| 4 | Open Document | Open Filing | 4 | 21 Nov 2017 | 17 Nov 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 01 Nov 2017 | 30 Oct 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 18 Oct 2017 | 16 Oct 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 07 Sep 2017 | 05 Sep 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 16 Aug 2017 | 14 Aug 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 06 Jul 2017 | 03 Jul 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 06 Jun 2017 | 02 Jun 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 04 May 2017 | 02 May 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 25 Apr 2017 | 21 Apr 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 05 Apr 2017 | 03 Apr 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 03 Mar 2017 | 02 Mar 2017 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 17 Nov 2016 | 02 Nov 2015 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 14 Nov 2016 | 10 Nov 2016 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 03 Nov 2016 | 01 Nov 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 | 04 Nov 2014 | 31 Oct 2014 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 19 Nov 2013 | 15 Nov 2013 | 000-21272 |
| 4 | Open Document | Open Filing | 4 | 19 Nov 2012 | 15 Nov 2012 | 000-21272 |