11 instances from 2 years 2017 - 2 instances Jan 8 Feb Mar Apr May Jun 23 Jul Aug Sep Oct Nov Dec 2016 - 9 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2016 2 instances 11:05:06 19:12:42 22 Jul Aug Sep 20 Oct 1 4 3 Oct 4, 2016 3 instances 16:19:39 16:55:02 19:34:21 Nov Dec 30