12 instances from 3 years 2018 - 1 instance Jan 3 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 1 instance Jan 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 20 3 Sep 20, 2016 3 instances 09:06:01 09:20:57 09:21:37 Oct 1 2 Oct 1, 2016 2 instances 16:10:08 16:16:53 4 3 Oct 4, 2016 3 instances 08:15:54 08:27:21 09:24:07 Nov Dec 30