12 instances from 2 years 2017 - 2 instances Jan 7 Feb 3 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 10:25:21 10:32:30 10:40:24 10:41:33 Oct 1 2 Oct 1, 2016 2 instances 12:24:25 12:27:35 4 3 Oct 4, 2016 3 instances 04:31:36 04:44:14 05:41:31 Nov Dec 30