33 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 4 Jun 21, 2018 4 instances 15:06:21 15:35:18 15:45:58 15:50:24 22 3 Jun 22, 2018 3 instances 03:05:01 10:40:18 10:52:45 24 Jul Aug Sep Oct Nov Dec 2017 - 14 instances Jan 6 2 Jan 6, 2017 2 instances 16:30:36 16:33:57 10 Feb Mar Apr May Jun 21 5 Jun 21, 2017 5 instances 10:45:12 10:46:45 18:43:09 19:03:27 19:26:09 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 10:39:10 19:50:02 Nov 8 2 Nov 8, 2017 2 instances 20:53:12 20:53:15 Dec 25 26 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:50:12 10:55:49 10:55:58 10:56:03 30 2 Sep 30, 2016 2 instances 20:10:39 20:16:25 Oct 3 3 Oct 3, 2016 3 instances 13:06:23 13:06:25 13:06:28 Nov Dec 29