18 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:03:41 02:04:06 02:04:39 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:30:26 04:30:26 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 10:47:51 10:53:13 10:53:20 10:55:53 30 Oct 3 3 Oct 3, 2016 3 instances 11:02:41 11:02:44 11:02:45 Nov Dec 29