12 instances from 2 years 2017 - 2 instances Jan 6 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 04:10:30 04:14:22 04:15:02 04:19:10 Oct 1 2 Oct 1, 2016 2 instances 13:08:57 13:17:00 4 3 Oct 4, 2016 3 instances 04:09:54 04:11:34 04:12:16 Nov Dec 29