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 20:06:38 20:20:27 22 4 Jun 22, 2018 4 instances 04:37:33 06:48:09 10:56:20 11:08:37 Jul 9 Aug Sep Oct Nov Dec 2017 - 13 instances Jan 6 2 Jan 6, 2017 2 instances 16:45:16 16:47:52 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:44:33 13:08:06 13:29:15 18:54:19 19:13:21 19:37:15 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 12:52:54 20:03:22 Nov 20 Dec 25 26 2016 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 2 Sep 19, 2016 2 instances 11:19:33 11:26:42 30 2 Sep 30, 2016 2 instances 20:57:18 21:04:44 Oct 3 3 Oct 3, 2016 3 instances 14:00:38 14:00:39 14:02:33 Nov Dec 29