26 instances from 3 years 2018 - 1 instance Jan 5 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 24 instances Jan 20 Feb Mar Apr May Jun 23 Jul 2 Aug Sep Oct Nov 20 21 Nov 20, 2017 21 instances 16:11:06 16:11:48 16:12:36 16:13:10 16:13:34 16:13:43 16:13:45 16:13:57 16:13:59 16:14:01 16:14:03 16:14:05 16:14:07 16:14:10 16:14:12 16:14:14 16:14:16 16:14:18 16:14:20 16:14:23 16:14:25 Dec 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16