20 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 01:33:38 01:33:41 01:33:49 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 07:14:28 07:20:39 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 13 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 09:51:38 10:08:54 10:43:54 11:08:13 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 14:15:30 14:26:49 14:35:20 14:39:28 30 2 Sep 30, 2016 2 instances 20:42:56 20:45:52 Oct 3 3 Oct 3, 2016 3 instances 12:49:28 12:58:13 13:14:51 Nov Dec