15 instances from 2 years 2017 - 4 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 01:25:14 01:27:32 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 01:12:39 01:26:18 Nov Dec 2016 - 11 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 08:37:32 09:17:33 09:23:05 09:29:45 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 08:17:23 08:22:12 08:22:23 08:22:45 30 2 Sep 30, 2016 2 instances 16:17:22 16:23:03 Oct 3 Nov Dec