27 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 20:26:25 20:40:09 22 4 Jun 22, 2018 4 instances 04:45:59 10:33:03 11:15:34 11:27:44 Jul 4 Aug Sep Oct Nov Dec 2017 - 11 instances Jan 6 10 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 13:03:57 13:27:43 13:48:29 19:13:15 19:32:28 19:56:10 Jul Aug Sep Oct 2 Nov Dec 25 26 2016 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:39:10 11:44:50 11:45:00 11:46:25 30 2 Sep 30, 2016 2 instances 21:31:32 21:36:15 Oct 3 2 Oct 3, 2016 2 instances 14:43:50 14:43:51 Nov Dec