28 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 6 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 20:16:30 20:30:12 22 4 Jun 22, 2018 4 instances 04:41:39 08:40:06 11:05:52 11:18:06 Jul Aug Sep Oct Nov Dec 2017 - 11 instances Jan 6 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:54:08 13:17:41 13:38:44 19:03:40 19:22:47 19:46:37 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 13:02:37 20:12:36 Nov Dec 25 26 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:29:16 11:34:53 11:34:58 11:36:28 30 2 Sep 30, 2016 2 instances 21:13:27 21:19:29 Oct 3 3 Oct 3, 2016 3 instances 14:22:49 14:22:50 14:23:00 Nov Dec 29