17 instances from 2 years 2018 - 8 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 19:46:15 19:54:24 20:00:24 20:04:50 22 23 3 Jun 23, 2018 3 instances 07:54:17 08:52:36 08:55:49 Jul Aug Sep Oct Nov Dec 2017 - 9 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2017 4 instances 12:02:53 12:25:13 12:41:58 12:51:57 22 Jul Aug Sep Oct 2 3 Nov Dec 25 26