7 instances from 1 year 2016 - 7 instances Jan Feb Mar Apr May Jun Jul Aug Sep 20 4 Sep 20, 2016 4 instances 04:10:04 04:13:56 04:14:36 04:18:43 Oct 4 5 2 Oct 5, 2016 2 instances 06:31:02 10:25:17 Nov Dec