25 instances from 4 years 2020 - 2 instances Jan 20 Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 Dec 2018 - 4 instances Jan 1 Feb Mar Apr May Jun 27 Jul 1 2 Aug Sep Oct Nov Dec 2017 - 6 instances Jan 1 9 Feb Mar Apr May Jun 29 Jul Aug Sep Oct 6 7 2 Oct 7, 2017 2 instances 00:04:48 01:00:00 Nov Dec 2016 - 13 instances Jan Feb Mar Apr May Jun 22 23 2 Jun 23, 2016 2 instances 00:36:45 04:57:57 30 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 12:26:54 12:38:03 12:43:40 12:51:41 Oct 1 2 Oct 1, 2016 2 instances 19:27:24 19:38:07 4 3 Oct 4, 2016 3 instances 11:45:19 11:55:50 12:54:07 Nov Dec