14 instances from 2 years 2018 - 1 instance Jan 3 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 13 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2016 4 instances 01:13:57 01:17:57 19:06:02 20:54:02 Jul Aug Sep 20 3 Sep 20, 2016 3 instances 14:10:20 14:47:49 17:19:57 26 Oct 1 2 4 3 Oct 4, 2016 3 instances 18:10:13 18:37:57 21:36:41 Nov Dec