28 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 6 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 20:12:51 20:26:36 22 4 Jun 22, 2018 4 instances 04:40:09 08:05:44 11:02:21 11:14:35 Jul Aug Sep Oct Nov Dec 2017 - 11 instances Jan 6 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:50:37 13:14:08 13:35:15 19:00:14 19:19:21 19:43:11 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 12:58:55 20:09:13 Nov Dec 25 26 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:25:42 11:31:18 11:31:23 11:32:53 30 2 Sep 30, 2016 2 instances 21:07:26 21:14:12 Oct 3 3 Oct 3, 2016 3 instances 14:14:19 14:14:20 14:15:22 Nov Dec 29