16 instances from 2 years 2017 - 2 instances Jan 6 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 14 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 09:05:26 09:50:15 20:33:01 25 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 04:09:49 04:13:41 04:14:21 04:18:26 Oct 1 2 Oct 1, 2016 2 instances 13:08:02 13:16:07 4 3 Oct 4, 2016 3 instances 04:09:03 04:10:44 04:11:26 Nov Dec 29