14 instances from 2 years 2017 - 2 instances Jan 8 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 14:20:49 14:55:50 19:50:28 20:08:53 Oct 1 2 Oct 1, 2016 2 instances 20:52:25 22:07:15 4 3 Oct 4, 2016 3 instances 15:26:16 15:59:24 18:40:50 Nov Dec 30