28 instances from 4 years 2020 - 4 instances Jan 20 Feb Mar Apr May Jun Jul 4 Aug Sep Oct Nov 13 15 Dec 2018 - 2 instances Jan 1 Feb Mar Apr May Jun Jul 13 Aug Sep Oct Nov Dec 2017 - 8 instances Jan 3 11 19 Feb Mar Apr May Jun Jul 2 Aug Sep Oct 7 8 2 Oct 8, 2017 2 instances 00:16:50 01:15:43 9 Nov Dec 2016 - 14 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 10:03:16 10:53:01 10:55:10 12:41:18 30 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 04:29:29 04:41:32 04:51:13 04:51:42 Oct 1 2 Oct 1, 2016 2 instances 11:29:31 11:32:00 4 3 Oct 4, 2016 3 instances 03:35:29 03:48:34 04:46:03 Nov Dec