31 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 4 Jun 21, 2018 4 instances 15:02:08 15:31:07 15:40:40 15:46:12 22 3 Jun 22, 2018 3 instances 03:03:17 10:36:18 10:48:44 Jul Aug Sep Oct Nov Dec 2017 - 13 instances Jan 6 2 Jan 6, 2017 2 instances 16:26:03 16:29:24 Feb Mar Apr May Jun 21 5 Jun 21, 2017 5 instances 10:41:09 10:42:41 18:39:09 18:59:30 19:22:10 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 10:35:10 19:46:01 Nov 8 2 Nov 8, 2017 2 instances 20:47:42 20:47:44 Dec 25 26 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:46:04 10:51:39 10:51:47 10:51:53 30 2 Sep 30, 2016 2 instances 20:03:50 20:09:42 Oct 3 3 Oct 3, 2016 3 instances 12:57:58 12:57:59 12:58:08 Nov Dec 29