18 instances from 2 years 2017 - 2 instances Jan 6 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 16 instances Jan Feb 17 Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 09:00:23 15:37:12 15:38:34 20:36:54 25 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 04:02:00 04:05:50 04:06:31 04:10:20 Oct 1 2 Oct 1, 2016 2 instances 13:00:09 13:08:27 4 3 Oct 4, 2016 3 instances 03:58:43 04:01:00 04:03:24 Nov Dec 29