21 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 17:39:30 23:16:12 22 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 7 Feb Mar Apr May Jun 22 Jul Aug 30 Sep Oct 3 Nov Dec 26 2016 - 12 instances Jan Feb Mar Apr May Jun 23 2 Jun 23, 2016 2 instances 08:45:16 18:25:31 Jul Aug Sep 19 20 3 Sep 20, 2016 3 instances 03:07:08 03:17:46 03:28:35 Oct 1 2 Oct 1, 2016 2 instances 10:06:10 10:07:26 4 3 Oct 4, 2016 3 instances 02:10:42 02:24:07 03:21:02 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16