15 instances from 2 years 2016 - 14 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2016 4 instances 00:03:42 01:41:08 06:56:09 09:13:48 25 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 01:25:26 01:30:43 01:30:43 01:46:11 Oct 1 2 Oct 1, 2016 2 instances 10:13:48 10:20:02 3 4 2 Oct 4, 2016 2 instances 01:23:47 01:23:47 Nov Dec 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 17