23 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 17:44:32 23:21:10 22 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 7 Feb Mar Apr May Jun 22 Jul Aug 30 Sep Oct 3 Nov Dec 26 2016 - 15 instances Jan Feb 17 Mar Apr May Jun 20 21 2 Jun 21, 2016 2 instances 13:31:41 13:57:43 23 Jul Aug Sep 19 20 3 Sep 20, 2016 3 instances 03:08:46 03:19:44 03:30:21 Oct 1 2 Oct 1, 2016 2 instances 10:07:45 10:09:05 4 3 Oct 4, 2016 3 instances 02:12:24 02:25:47 03:22:47 Nov Dec 29