32 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 15:03:01 15:32:00 15:41:47 15:47:05 22 3 Jun 22, 2018 3 instances 03:03:39 10:37:08 10:49:36 Jul 9 Aug Sep Oct Nov Dec 2017 - 13 instances Jan 6 2 Jan 6, 2017 2 instances 16:26:57 16:30:17 Feb Mar Apr May Jun 21 5 Jun 21, 2017 5 instances 10:41:59 10:43:32 18:39:59 19:00:20 19:22:59 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 10:36:00 19:46:50 Nov 8 2 Nov 8, 2017 2 instances 20:48:50 20:48:52 Dec 25 26 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:46:55 10:52:30 10:52:39 10:52:44 30 2 Sep 30, 2016 2 instances 20:05:12 20:10:53 Oct 3 3 Oct 3, 2016 3 instances 12:59:45 12:59:47 12:59:48 Nov Dec 29