22 instances from 3 years 2018 - 8 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 20:29:09 20:42:54 20:44:15 22 3 Jun 22, 2018 3 instances 04:47:07 11:18:14 11:30:23 23 25 Jul Aug Sep Oct Nov Dec 2017 - 9 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 13:06:44 13:30:30 13:51:15 19:16:01 19:35:11 19:58:52 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 21:35:21 21:41:13 Oct 3 2 Oct 3, 2016 2 instances 14:49:25 14:49:25 4 Nov Dec