30 instances from 5 years 2020 - 4 instances Jan 18 Feb Mar Apr May Jun 30 Jul Aug 3 Sep Oct Nov 13 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct 26 Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:50:51 10:45:45 19:09:02 Jul Aug Sep Oct Nov Dec 2017 - 8 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 07:59:41 14:51:16 Jul Aug Sep Oct 2 Nov 20 2 Nov 20, 2017 2 instances 19:09:08 20:16:39 Dec 25 26 2016 - 13 instances Jan Feb Mar Apr May Jun 20 21 3 Jun 21, 2016 3 instances 01:06:20 01:10:18 06:53:08 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 15:41:34 17:32:24 19:07:53 19:30:36 30 2 Sep 30, 2016 2 instances 22:16:02 23:46:40 Oct 3 2 Oct 3, 2016 2 instances 16:53:33 17:48:48 Nov Dec 29