21 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:27:55 03:28:31 03:29:24 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 7 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 20:19:36 20:22:26 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 12 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 09:41:06 10:07:03 12:30:13 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 17:13:26 17:17:05 17:19:44 Oct 1 2 Oct 1, 2016 2 instances 01:40:13 01:45:07 3 3 Oct 3, 2016 3 instances 17:20:21 17:25:11 17:25:44 Nov Dec 30 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 18