11 instances from 2 years 2017 - 1 instance Jan 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 20 4 Sep 20, 2016 4 instances 10:19:11 10:26:06 10:34:13 10:35:19 Oct 1 2 Oct 1, 2016 2 instances 17:22:09 17:29:57 4 3 Oct 4, 2016 3 instances 09:37:55 09:50:42 10:46:58 Nov Dec 30