30 instances from 4 years 2020 - 1 instance Jan Feb Mar Apr May Jun Jul 24 Aug Sep Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2018 6 instances 05:29:35 05:29:39 05:31:42 05:31:46 05:35:02 20:17:26 22 Jul Aug Sep Oct Nov Dec 2017 - 13 instances Jan 6 4 Jan 6, 2017 4 instances 19:21:16 19:22:13 20:04:23 20:08:02 Feb Mar Apr May Jun 21 5 Jun 21, 2017 5 instances 03:26:31 03:26:50 03:26:53 03:29:31 03:29:34 22 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 03:54:52 03:54:56 Nov 20 Dec 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:56:03 11:01:37 11:01:46 11:01:48 30 Oct 3 3 Oct 3, 2016 3 instances 13:20:12 13:20:31 13:21:46 Nov Dec 29