14 instances from 2 years 2017 - 2 instances Jan 7 Feb Mar Apr May Jun 23 Jul Aug Sep Oct Nov Dec 2016 - 12 instances Jan Feb Mar Apr May Jun 21 22 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:19:22 14:54:26 19:48:59 20:07:23 Oct 1 2 Oct 1, 2016 2 instances 20:50:58 22:05:50 4 3 Oct 4, 2016 3 instances 15:24:48 15:57:56 18:39:22 Nov Dec 30