24 instances from 4 years 2020 - 3 instances Jan 21 Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 15 Dec 2018 - 4 instances Jan 1 Feb Mar Apr May Jun 28 Jul 1 2 Aug Sep Oct Nov Dec 2017 - 6 instances Jan 1 9 Feb Mar Apr May Jun 29 Jul Aug Sep Oct 7 3 Oct 7, 2017 3 instances 00:12:27 00:29:42 01:26:37 Nov Dec 2016 - 11 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 13:03:16 13:06:28 14:07:27 14:21:00 30 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 12:27:43 12:38:49 12:44:25 12:52:30 Oct 3 2 Oct 3, 2016 2 instances 09:43:39 10:29:01 Nov Dec