18 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:06:06 02:06:31 02:07:04 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:36:30 04:36:37 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:52:24 10:57:43 10:57:52 11:05:01 30 2 Sep 30, 2016 2 instances 19:15:00 19:20:27 Oct 3 3 Oct 3, 2016 3 instances 11:07:08 11:07:08 11:07:23 Nov Dec 29