21 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 17:38:11 23:14:55 22 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 7 Feb Mar Apr May Jun 22 Jul Aug Sep Oct 3 Nov Dec 26 2016 - 13 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 11:02:42 11:08:25 11:46:46 Jul Aug Sep 19 20 3 Sep 20, 2016 3 instances 03:05:53 03:16:24 03:27:20 Oct 1 2 Oct 1, 2016 2 instances 10:04:55 10:06:11 4 3 Oct 4, 2016 3 instances 02:09:28 02:22:52 03:19:46 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16