15 instances from 3 years 2017 - 4 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 01:35:10 01:37:25 Jul Aug Sep Oct 2 Nov Dec 2016 - 10 instances Jan Feb 17 Mar Apr May Jun 20 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 08:19:42 08:24:52 08:25:09 08:25:18 30 2 Sep 30, 2016 2 instances 16:20:26 16:25:40 Oct 3 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16