21 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:42:34 05:32:29 07:05:01 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 05:54:33 06:10:24 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 13 instances Jan Feb 18 Mar Apr May Jun 23 3 Jun 23, 2016 3 instances 18:40:50 23:20:41 23:44:59 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 15:19:23 16:36:15 16:59:58 18:58:18 30 2 Sep 30, 2016 2 instances 21:51:13 22:51:18 Oct 3 3 Oct 3, 2016 3 instances 15:14:52 15:57:50 16:45:04 Nov Dec 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16