18 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:04:36 02:05:01 02:05:35 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:32:28 04:32:28 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 10:48:47 10:54:09 10:54:16 10:56:48 30 Oct 3 3 Oct 3, 2016 3 instances 11:03:36 11:03:39 11:03:40 Nov Dec 29