29 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 20:14:10 20:27:54 22 4 Jun 22, 2018 4 instances 04:40:43 11:03:36 11:15:50 23:50:49 23 Jul Aug Sep Oct Nov Dec 2017 - 11 instances Jan 6 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:51:52 13:15:26 13:36:30 19:01:28 19:20:35 19:44:24 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 13:00:22 20:10:25 Nov Dec 25 26 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:26:58 11:32:35 11:32:39 11:34:10 30 2 Sep 30, 2016 2 instances 21:09:53 21:16:24 Oct 3 3 Oct 3, 2016 3 instances 14:18:05 14:18:19 14:18:31 Nov Dec 29