18 instances from 2 years 2017 - 2 instances Jan 6 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 16 instances Jan Feb 17 Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 09:08:19 15:45:23 15:47:03 20:24:23 25 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 04:11:16 04:15:08 04:15:48 04:19:56 Oct 1 2 Oct 1, 2016 2 instances 13:09:34 13:17:37 4 3 Oct 4, 2016 3 instances 04:10:34 04:12:11 04:12:56 Nov Dec 29