22 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 17:38:14 23:14:58 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 - 14 instances Jan Feb 17 Mar Apr May Jun 21 23 2 Jun 23, 2016 2 instances 08:43:33 18:26:05 Jul Aug Sep 19 20 3 Sep 20, 2016 3 instances 03:05:56 03:16:27 03:27:23 Oct 1 2 Oct 1, 2016 2 instances 10:04:58 10:06:14 4 3 Oct 4, 2016 3 instances 02:09:31 02:22:55 03:19:50 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16