25 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct 27 Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:01:47 04:02:25 04:03:42 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 7 Feb Mar Apr May Jun 21 Jul Aug 30 Sep Oct 2 Nov Dec 25 2016 - 15 instances Jan Feb 17 Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 09:10:05 12:49:49 15:21:49 20:27:00 22 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 18:14:43 18:15:08 18:20:20 Oct 1 2 Oct 1, 2016 2 instances 02:53:46 02:59:21 3 2 Oct 3, 2016 2 instances 18:42:37 18:42:50 4 Nov Dec 29