| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jul 2022 | 08 Jul 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Apr 2022 | 08 Apr 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2022 | 11 Mar 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2022 | 04 Mar 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jan 2022 | 14 Jan 2022 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Nov 2021 | 17 Nov 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Nov 2021 | 05 Nov 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Oct 2021 | 08 Oct 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2021 | 09 Aug 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jul 2021 | 09 Jul 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 May 2021 | 25 May 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Apr 2021 | 09 Apr 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2021 | 12 Mar 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2021 | 04 Mar 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2021 | 08 Jan 2021 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Oct 2020 | 09 Oct 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2020 | 09 Aug 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jul 2020 | 10 Jul 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2020 | 19 May 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Apr 2020 | 10 Apr 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2020 | 12 Mar 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2020 | 04 Mar 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Feb 2020 | 26 Feb 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2020 | 21 Feb 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jan 2020 | 10 Jan 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2020 | 01 Jan 2020 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Oct 2019 | 11 Oct 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Aug 2019 | 09 Aug 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2019 | 12 Jul 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Apr 2019 | 12 Apr 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2019 | 12 Mar 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Mar 2019 | 01 Mar 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2019 | 11 Jan 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jan 2019 | 01 Jan 2019 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Nov 2018 | 24 Nov 2018 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Oct 2018 | 12 Oct 2018 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Aug 2018 | 09 Aug 2018 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jul 2018 | 13 Jul 2018 | 000-16211 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jul 2018 | 27 Jun 2018 | 000-16211 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jun 2018 | 27 Jun 2018 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Oct 2017 | 13 Oct 2017 | 000-16211 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2017 | 14 Jul 2017 | 000-16211 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jul 2017 | 01 Jul 2017 | 000-16211 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Mar 2016 | 29 Feb 2016 | 000-22673 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jan 2016 | 01 Jan 2016 | 000-22673 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Nov 2015 | 24 Nov 2015 | 000-22673 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jan 2015 | 01 Jan 2015 | 000-22673 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Nov 2014 | 25 Nov 2014 | 000-22673 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jan 2014 | 02 Jan 2014 | 000-22673 |