29 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 20:06:28 20:20:16 22 4 Jun 22, 2018 4 instances 04:37:29 06:47:17 10:56:10 11:08:27 Jul 9 Aug Sep Oct Nov Dec 2017 - 13 instances Jan 6 2 Jan 6, 2017 2 instances 16:45:01 16:47:38 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:44:20 13:07:52 13:29:01 18:54:05 19:13:08 19:37:01 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 12:52:41 20:03:09 Nov 20 Dec 25 26 2016 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 2 Sep 19, 2016 2 instances 11:19:19 11:26:28 30 2 Sep 30, 2016 2 instances 20:56:57 21:04:24 Oct 3 3 Oct 3, 2016 3 instances 14:00:12 14:00:19 14:02:01 Nov Dec 29