10 instances from 2 years 2017 - 1 instance Jan 18 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 20 4 Sep 20, 2016 4 instances 01:13:34 01:46:02 01:51:24 01:51:24 Oct 2 2 Oct 2, 2016 2 instances 14:04:02 19:38:01 4 2 Oct 4, 2016 2 instances 14:23:07 23:41:36 5 Nov Dec