23 instances from 3 years 2018 - 8 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 20:29:16 20:43:01 20:44:22 22 3 Jun 22, 2018 3 instances 04:47:10 11:18:20 11:30:30 23 30 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan 9 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 13:06:50 13:30:36 13:51:21 19:16:08 19:35:18 19:58:59 Jul Aug Sep Oct 2 Nov Dec 25 26 2016 - 5 instances Jan Feb Mar Apr May Jun Jul Aug Sep 30 2 Sep 30, 2016 2 instances 21:35:35 21:41:23 Oct 3 2 Oct 3, 2016 2 instances 14:49:38 14:49:48 4 Nov Dec