17 instances from 2 years 2018 - 7 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2018 6 instances 19:27:30 19:29:04 19:36:15 19:40:34 19:50:28 19:54:45 22 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:17:21 12:32:34 12:39:36 12:55:20 13:03:49 13:16:58 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 12:12:27 12:26:42 Nov Dec 25 2 Dec 25, 2017 2 instances 15:55:37 16:14:06