7 instances from 2 years 2018 - 6 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 12:24:48 20:56:15 22 2 Jun 22, 2018 2 instances 16:21:27 16:53:02 Jul 6 Aug Sep Oct Nov Dec 2017 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct 7 Nov Dec