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 14:18:25 14:53:42 19:48:14 20:06:26 Oct 1 2 Oct 1, 2016 2 instances 20:50:04 22:04:56 4 3 Oct 4, 2016 3 instances 15:23:51 15:56:58 18:38:25 Nov Dec 30