18 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:01:47 02:02:11 02:02:45 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:28:25 04:28:25 Jul Aug Sep Oct 2 Nov 20 Dec 25 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:45:49 10:51:13 10:51:19 10:53:53 30 Oct 3 3 Oct 3, 2016 3 instances 11:00:40 11:00:44 11:00:45 Nov Dec 29