7 instances from 1 year 2016 - 7 instances Jan Feb Mar Apr May Jun Jul Aug Sep 20 4 Sep 20, 2016 4 instances 04:07:02 04:10:53 04:11:33 04:15:27 Oct 4 5 2 Oct 5, 2016 2 instances 06:30:59 10:25:14 Nov Dec