20 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:25:37 03:26:12 03:27:05 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 7 2 Jan 7, 2017 2 instances 10:45:34 12:27:21 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 20:17:15 20:20:11 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 11 instances Jan Feb Mar Apr May Jun 20 2 Jun 20, 2016 2 instances 09:03:01 09:47:08 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 17:11:10 17:14:50 17:17:28 Oct 1 2 Oct 1, 2016 2 instances 01:37:57 01:42:52 3 3 Oct 3, 2016 3 instances 17:18:04 17:22:56 17:23:27 Nov Dec 30