10 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May 24 Jun 21 Jul 6 Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun Jul Aug Sep 26 2 Sep 26, 2017 2 instances 14:23:57 14:24:00 Oct 2 2 Oct 2, 2017 2 instances 13:29:09 13:29:12 Nov Dec 2016 - 3 instances Jan Feb Mar Apr May 3 Jun Jul Aug Sep Oct 3 2 Oct 3, 2016 2 instances 09:09:51 09:09:55 Nov Dec