7 instances from 2 years 2018 - 6 instances Jan Feb Mar Apr May Jun 22 3 Jun 22, 2018 3 instances 16:17:15 21:03:06 23:12:14 Jul 6 2 Jul 6, 2018 2 instances 03:06:42 17:04:10 7 Aug Sep Oct Nov Dec 2017 - 1 instance Jan Feb Mar Apr May Jun Jul Aug 31 Sep Oct Nov Dec