27 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 8 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 20:26:10 20:39:55 20:40:08 22 4 Jun 22, 2018 4 instances 04:45:53 10:30:51 11:15:21 11:27:31 Jul 7 Aug Sep Oct Nov Dec 2017 - 10 instances Jan 6 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 13:03:43 13:27:12 13:48:16 19:13:01 19:32:15 19:55:56 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 11:38:56 11:44:36 11:44:46 11:46:11 30 2 Sep 30, 2016 2 instances 21:31:10 21:35:56 Oct 3 2 Oct 3, 2016 2 instances 14:43:21 14:43:22 Nov Dec