33 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 8 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 15:06:39 15:35:33 15:46:13 15:50:39 22 3 Jun 22, 2018 3 instances 03:05:11 10:40:37 10:53:03 Jul 9 Aug Sep Oct Nov Dec 2017 - 14 instances Jan 6 2 Jan 6, 2017 2 instances 16:31:30 16:34:45 10 Feb Mar Apr May Jun 21 5 Jun 21, 2017 5 instances 10:45:27 10:46:59 18:43:33 19:03:34 19:26:33 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 10:39:24 19:50:16 Nov 8 2 Nov 8, 2017 2 instances 20:53:41 20:53:43 Dec 25 26 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:50:26 10:56:03 10:56:13 10:56:17 30 2 Sep 30, 2016 2 instances 20:14:06 20:19:53 Oct 3 3 Oct 3, 2016 3 instances 13:07:52 13:07:53 13:07:55 Nov Dec 29