17 instances from 2 years 2018 - 8 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 19:45:03 19:54:08 19:59:14 20:03:39 22 23 3 Jun 23, 2018 3 instances 07:53:59 08:52:21 08:55:31 Jul Aug Sep Oct Nov Dec 2017 - 9 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2017 4 instances 12:00:10 12:22:30 12:39:17 12:51:00 22 Jul Aug Sep Oct 2 3 Nov Dec 25 26