| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2024 | 16 May 2024 | 001-06682 |
| 4 | Open Document | Open Filing | FORM 4 | 22 May 2023 | 18 May 2023 | 001-06682 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Sep 2022 | 15 Sep 2022 | 001-36859 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2022 | 03 Aug 2022 | 001-36859 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jun 2022 | 08 Jun 2022 | 001-06682 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2022 | 01 Apr 2022 | 001-06682 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2022 | 01 Apr 2022 | 001-06682 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2022 | 01 Mar 2022 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2022 | 09 Feb 2022 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jan 2022 | 12 Jan 2022 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Dec 2021 | 08 Dec 2021 | 000-17948 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Nov 2021 | 18 Nov 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Nov 2021 | 18 Nov 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2021 | 16 Nov 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Nov 2021 | 10 Nov 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Oct 2021 | 13 Oct 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Sep 2021 | 08 Sep 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Aug 2021 | 11 Aug 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jul 2021 | 14 Jul 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jun 2021 | 16 Jun 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jun 2021 | 14 Jun 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 May 2021 | 26 May 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2021 | 18 May 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2021 | 16 May 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2021 | 12 May 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Apr 2021 | 07 Apr 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Mar 2021 | 10 Mar 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2021 | 10 Feb 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2021 | 13 Jan 2021 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Dec 2020 | 09 Dec 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Nov 2020 | 17 Nov 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Nov 2020 | 11 Nov 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Oct 2020 | 07 Oct 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Sep 2020 | 09 Sep 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Aug 2020 | 12 Aug 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jul 2020 | 08 Jul 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jun 2020 | 16 Jun 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2020 | 10 Jun 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2020 | 16 May 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2020 | 12 May 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Apr 2020 | 14 Apr 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Mar 2020 | 10 Mar 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2020 | 11 Feb 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2020 | 14 Jan 2020 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Dec 2019 | 10 Dec 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2019 | 18 Nov 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Nov 2019 | 12 Nov 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Oct 2019 | 08 Oct 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Sep 2019 | 10 Sep 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Aug 2019 | 13 Aug 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jul 2019 | 09 Jul 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jun 2019 | 17 Jun 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jun 2019 | 11 Jun 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2019 | 16 May 2019 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2018 | 11 Dec 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Dec 2018 | 07 Dec 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Nov 2018 | 06 Nov 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2018 | 02 Oct 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Sep 2018 | 04 Sep 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Aug 2018 | 07 Aug 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jul 2018 | 03 Jul 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jun 2018 | 18 Jun 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jun 2018 | 05 Jun 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2018 | 16 May 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2018 | 01 May 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2018 | 03 Apr 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2018 | 06 Mar 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Feb 2018 | 06 Feb 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jan 2018 | 09 Jan 2018 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Dec 2017 | 05 Dec 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Nov 2017 | 07 Nov 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Oct 2017 | 05 Oct 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Sep 2017 | 07 Sep 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Aug 2017 | 10 Aug 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jul 2017 | 13 Jul 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jun 2017 | 16 Jun 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jun 2017 | 15 Jun 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2017 | 18 May 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2017 | 16 May 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2017 | 04 Apr 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2017 | 07 Mar 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2017 | 18 Feb 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Feb 2017 | 07 Feb 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jan 2017 | 10 Jan 2017 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Dec 2016 | 04 Nov 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Nov 2016 | 21 Nov 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Oct 2016 | 21 Oct 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Sep 2016 | 21 Sep 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Sep 2016 | 17 Sep 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Aug 2016 | 22 Aug 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jul 2016 | 21 Jul 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jun 2016 | 21 Jun 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jun 2016 | 16 Jun 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2016 | 23 May 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2016 | 16 May 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Apr 2016 | 21 Apr 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Mar 2016 | 21 Mar 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2016 | 22 Feb 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jan 2016 | 21 Jan 2016 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Dec 2015 | 21 Dec 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Nov 2015 | 12 Nov 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Oct 2015 | 01 Oct 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Sep 2015 | 17 Sep 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Sep 2015 | 01 Sep 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Aug 2015 | 03 Aug 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2015 | 01 Jul 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jun 2015 | 16 Jun 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2015 | 01 Jun 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2015 | 16 May 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2015 | 12 May 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Apr 2015 | 06 Apr 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2015 | 02 Mar 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2015 | 02 Feb 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2015 | 05 Jan 2015 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Dec 2014 | 01 Dec 2014 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2014 | 05 Nov 2014 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Sep 2014 | 17 Sep 2014 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jun 2014 | 16 Jun 2014 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2014 | 17 May 2014 | 000-17948 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2014 | 18 Feb 2014 | 000-17948 |