30 instances from 5 years 2020 - 5 instances Jan 20 Feb Mar Apr May Jun 28 Jul 1 Aug Sep Oct Nov 13 15 Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 23 24 Jul Aug Sep Oct Nov Dec 2017 - 8 instances Jan 9 Feb Mar Apr May Jun 22 23 Jul Aug Sep Oct 5 Nov 20 2 Nov 20, 2017 2 instances 19:09:33 20:17:12 Dec 25 29 2016 - 13 instances Jan Feb Mar Apr May Jun 20 21 3 Jun 21, 2016 3 instances 00:40:11 00:44:15 07:18:26 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 15:40:35 17:31:34 19:06:51 19:29:46 30 2 Sep 30, 2016 2 instances 22:14:16 23:45:50 Oct 3 2 Oct 3, 2016 2 instances 16:52:41 17:47:56 Nov Dec 31