7 instances from 2 years 2017 - 1 instance Jan Feb Mar Apr May Jun Jul Aug 29 Sep Oct Nov Dec 2016 - 6 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 08:47:40 09:09:27 09:14:10 09:31:23 Oct 1 2 Nov Dec