28 instances from 3 years 2018 - 8 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 20:26:53 20:40:37 20:41:02 22 5 Jun 22, 2018 5 instances 04:46:11 11:16:02 11:28:11 16:22:12 23:50:57 Jul Aug Sep Oct Nov Dec 2017 - 11 instances Jan 6 7 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 13:04:24 13:28:11 13:48:56 19:13:42 19:32:55 19:56:36 Jul Aug Sep Oct 2 Nov Dec 25 26 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:39:38 11:45:18 11:45:28 11:46:53 30 2 Sep 30, 2016 2 instances 21:32:06 21:37:12 Oct 3 2 Oct 3, 2016 2 instances 14:44:34 14:44:43 Nov Dec 29