29 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 20:26:49 20:40:33 20:40:58 22 5 Jun 22, 2018 5 instances 04:46:09 11:15:58 11:28:07 16:22:09 23:47:42 Jul Aug Sep Oct Nov Dec 2017 - 11 instances Jan 6 7 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 13:04:21 13:28:07 13:48:53 19:13:39 19:32:51 19:56:33 Jul Aug Sep Oct 2 Nov Dec 25 26 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:39:34 11:45:14 11:45:25 11:46:49 30 2 Sep 30, 2016 2 instances 21:32:02 21:36:53 Oct 3 2 Oct 3, 2016 2 instances 14:44:30 14:44:32 Nov Dec 29