22 instances from 3 years 2018 - 8 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 20:29:12 20:42:58 20:44:18 22 3 Jun 22, 2018 3 instances 04:47:08 11:18:17 11:30:26 23 25 Jul Aug Sep Oct Nov Dec 2017 - 9 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 13:06:47 13:30:33 13:51:18 19:16:05 19:35:14 19:58:56 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 21:35:29 21:41:18 Oct 3 2 Oct 3, 2016 2 instances 14:49:33 14:49:38 4 Nov Dec