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 13:31:30 15:48:33 Jul Aug Sep Oct 2 Nov 20 2 Nov 20, 2017 2 instances 20:18:24 21:38:51 Dec 26 2016 - 11 instances Jan Feb Mar Apr May Jun 21 22 23 2 Jun 23, 2016 2 instances 01:24:20 03:05:34 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 17:14:36 19:11:27 19:34:04 30 2 Sep 30, 2016 2 instances 23:45:20 23:49:39 Oct 3 2 Oct 3, 2016 2 instances 17:08:23 18:03:46 Nov Dec