22 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:52:41 11:23:43 19:49:59 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 23 Jul Aug Sep Oct 5 Nov Dec 25 29 2016 - 14 instances Jan Feb Mar Apr May Jun 20 21 3 Jun 21, 2016 3 instances 01:04:21 01:08:26 06:56:30 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 15:19:57 17:13:16 18:49:21 19:11:56 30 2 Sep 30, 2016 2 instances 21:48:27 23:23:35 Oct 3 3 Oct 3, 2016 3 instances 16:13:07 16:30:47 17:22:46 Nov Dec 29