18 instances from 3 years 2018 - 4 instances Jan 15 Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:15:20 03:15:20 03:15:20 Jul Aug Sep Oct Nov Dec 2017 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 21 Dec 2016 - 13 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2016 4 instances 06:44:31 06:48:41 10:02:37 15:22:53 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 16:47:24 16:52:26 16:53:37 16:53:44 Oct 1 4 3 Oct 4, 2016 3 instances 13:08:34 13:11:54 13:12:22 Nov Dec 30