23 instances from 3 years 2020 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 15 Dec 2017 - 8 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 06:20:30 06:41:19 Jul Aug Sep Oct 2 4 Oct 2, 2017 4 instances 04:02:35 04:06:39 04:09:09 06:16:54 Nov Dec 29 2016 - 13 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 11:28:58 12:18:12 12:58:13 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 13:33:25 13:42:48 13:51:38 13:53:17 30 2 Sep 30, 2016 2 instances 20:00:07 20:03:30 Oct 3 3 Oct 3, 2016 3 instances 12:07:33 12:14:07 12:32:59 Nov Dec 29