20 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 01:45:39 01:45:55 01:46:23 Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan 6 2 Jan 6, 2017 2 instances 16:28:53 16:37:43 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:08:40 04:08:47 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 18:45:04 18:50:33 18:51:13 19:11:07 Oct 1 2 Oct 1, 2016 2 instances 03:22:33 03:28:44 3 3 Oct 3, 2016 3 instances 19:05:35 19:12:03 19:15:03 Nov Dec 29