15 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:18:30 02:18:56 02:19:30 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 10:13:46 10:14:01 Jul Aug Sep Oct Nov Dec 25 2016 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 3 Sep 19, 2016 3 instances 16:26:15 16:31:01 16:31:04 Oct 1 2 Oct 1, 2016 2 instances 00:54:02 00:59:11 3 2 Oct 3, 2016 2 instances 16:39:09 16:39:44 Nov Dec 29