12 instances from 2 years 2018 - 11 instances Jan Feb Mar Apr May 24 Jun 21 2 Jun 21, 2018 2 instances 18:01:45 19:58:57 22 4 Jun 22, 2018 4 instances 01:34:37 18:57:58 21:00:54 22:33:42 Jul 5 2 Jul 5, 2018 2 instances 16:32:55 19:08:02 6 2 Jul 6, 2018 2 instances 14:08:50 17:22:37 Aug Sep Oct Nov Dec 2017 - 1 instance Jan Feb Mar Apr May Jun Jul Aug 31 Sep Oct Nov Dec