27 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 20:24:30 20:38:16 22 3 Jun 22, 2018 3 instances 04:45:05 11:13:45 11:25:53 23 Jul 9 Aug Sep Oct Nov Dec 2017 - 10 instances Jan 6 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 13:02:04 13:25:33 13:46:37 19:11:24 19:30:28 19:54:18 Jul Aug Sep Oct 2 Nov Dec 25 26 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:37:16 11:42:54 11:43:05 11:44:30 30 2 Sep 30, 2016 2 instances 21:27:56 21:32:02 Oct 3 3 Oct 3, 2016 3 instances 14:38:10 14:38:21 14:38:22 Nov Dec