18 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 01:46:05 01:46:22 01:46:49 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 2 Jan 6, 2017 2 instances 16:29:19 16:38:10 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:09:05 04:09:12 Jul Aug Sep Oct Nov Dec 25 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 18:45:29 18:50:59 18:51:38 19:11:32 Oct 1 2 Oct 1, 2016 2 instances 03:22:59 03:29:09 3 3 Oct 3, 2016 3 instances 19:06:00 19:12:28 19:15:29 Nov Dec 29