24 instances from 4 years 2020 - 2 instances Jan 21 Feb Mar Apr May Jun Jul Aug Sep Oct Nov 15 Dec 2018 - 2 instances Jan 1 Feb Mar Apr May Jun Jul 13 Aug Sep Oct Nov Dec 2017 - 7 instances Jan 1 10 Feb Mar Apr May Jun 28 Jul Aug Sep Oct 7 3 Oct 7, 2017 3 instances 00:21:24 00:30:10 01:27:05 9 Nov Dec 2016 - 13 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 15:11:45 17:17:12 21:20:01 22:06:31 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 07:19:16 07:26:17 07:34:51 07:35:37 Oct 1 2 Oct 1, 2016 2 instances 14:19:23 14:24:20 4 3 Oct 4, 2016 3 instances 06:27:54 06:39:31 07:36:34 Nov Dec