21 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 22 26 Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 13:28:04 15:45:39 Jul Aug Sep Oct 2 Nov 20 2 Nov 20, 2017 2 instances 19:13:39 20:23:25 Dec 26 2016 - 11 instances Jan Feb Mar Apr May Jun 22 2 Jun 22, 2016 2 instances 20:02:51 22:52:39 23 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 17:12:38 17:33:41 19:09:11 19:31:54 30 2 Sep 30, 2016 2 instances 23:43:33 23:47:57 Oct 3 2 Oct 3, 2016 2 instances 17:06:40 18:02:02 Nov Dec