28 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 8 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 20:25:30 20:39:15 20:39:16 22 4 Jun 22, 2018 4 instances 04:45:31 10:04:46 11:14:43 11:26:52 24 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan 6 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 13:03:05 13:26:34 13:47:38 19:12:24 19:31:28 19:55:18 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 11:38:17 11:43:57 11:44:08 11:45:33 30 2 Sep 30, 2016 2 instances 21:29:36 21:33:54 Oct 3 3 Oct 3, 2016 3 instances 14:40:14 14:40:52 14:40:53 Nov Dec