21 instances from 3 years 2018 - 2 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 04:40:46 11:42:22 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 8 Feb Mar Apr May Jun 23 Jul Aug Sep Oct 5 Nov Dec 25 29 2016 - 14 instances Jan Feb Mar Apr May Jun 21 22 3 Jun 22, 2016 3 instances 03:07:04 03:40:49 13:22:23 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:08:15 17:39:54 22:44:34 23:03:08 Oct 1 2 Oct 1, 2016 2 instances 21:17:07 23:58:13 4 3 Oct 4, 2016 3 instances 18:34:51 18:59:44 21:59:46 Nov Dec 30