25 instances from 4 years 2020 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 19 Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 22 23 27 Jul Aug Sep Oct Nov Dec 2017 - 8 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 07:14:12 07:20:33 Jul Aug 29 Sep Oct 2 4 Oct 2, 2017 4 instances 05:16:39 05:18:40 05:23:35 07:09:38 Nov Dec 25 2016 - 13 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 13:55:30 18:51:54 20:11:20 21 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 14:12:54 14:23:05 14:31:37 14:35:44 30 2 Sep 30, 2016 2 instances 20:38:12 20:40:51 Oct 3 3 Oct 3, 2016 3 instances 12:45:02 12:53:42 13:10:14 Nov Dec