20 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 01:43:36 01:43:50 01:44:13 Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan 6 2 Jan 6, 2017 2 instances 16:27:09 16:35:59 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:06:46 04:06:53 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 18:43:07 18:48:38 18:49:19 19:09:12 Oct 1 2 Oct 1, 2016 2 instances 03:20:37 03:26:50 3 3 Oct 3, 2016 3 instances 19:03:41 19:10:09 19:13:10 Nov Dec 29