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 13:26:23 15:44:06 Jul Aug Sep Oct 2 Nov 20 2 Nov 20, 2017 2 instances 19:13:31 20:23:02 Dec 26 2016 - 11 instances Jan Feb Mar Apr May Jun 22 2 Jun 22, 2016 2 instances 20:02:32 22:52:52 23 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 17:12:24 17:33:27 19:08:57 19:31:40 30 2 Sep 30, 2016 2 instances 23:43:19 23:47:42 Oct 3 2 Oct 3, 2016 2 instances 17:06:26 18:01:48 Nov Dec