13 instances from 2 years 2017 - 1 instance Jan 8 Feb Mar Apr May Jun 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 14:26:40 15:01:39 19:56:24 20:15:58 Oct 1 2 Oct 1, 2016 2 instances 20:58:08 22:13:06 4 3 Oct 4, 2016 3 instances 15:32:05 16:05:10 18:46:34 Nov Dec 30