15 instances from 2 years 2018 - 14 instances Jan Feb Mar Apr May 25 Jun 21 22 3 Jun 22, 2018 3 instances 07:52:32 17:53:00 19:14:47 23 24 Jul 3 5 3 Jul 5, 2018 3 instances 11:29:05 13:59:44 20:27:33 6 3 Jul 6, 2018 3 instances 13:44:30 13:59:22 14:13:15 Aug Sep Oct Nov Dec 2017 - 1 instance Jan Feb Mar Apr May Jun 22 Jul Aug Sep Oct Nov Dec