18 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:04:58 02:05:23 02:05:56 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:32:50 04:32:52 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 10:49:09 10:54:30 10:54:37 10:57:10 30 Oct 3 3 Oct 3, 2016 3 instances 11:03:58 11:04:00 11:04:02 Nov Dec 29