14 instances from 2 years 2017 - 2 instances Jan 7 Feb Mar Apr May Jun 23 Jul Aug Sep Oct Nov Dec 2016 - 12 instances Jan Feb Mar Apr May Jun 21 22 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:18:16 14:53:32 19:48:05 20:06:16 Oct 1 2 Oct 1, 2016 2 instances 20:49:55 22:04:46 4 3 Oct 4, 2016 3 instances 15:23:41 15:56:47 18:38:16 Nov Dec 30