20 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 01:41:52 01:42:05 01:42:25 Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan 6 2 Jan 6, 2017 2 instances 16:25:15 16:31:48 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:04:57 04:05:04 Jul Aug Sep Oct Nov 2 8 Dec 25 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 18:41:25 18:46:59 18:47:43 19:07:35 Oct 1 2 Oct 1, 2016 2 instances 03:18:43 03:25:01 3 3 Oct 3, 2016 3 instances 19:02:04 19:08:33 19:11:34 Nov Dec 29