18 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:21:01 02:21:27 02:22:01 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 2 Jan 6, 2017 2 instances 22:24:11 22:24:12 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 10:16:23 10:16:45 Jul Aug Sep Oct Nov 21 Dec 25 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 16:28:05 16:28:49 16:33:40 16:33:46 Oct 1 2 Oct 1, 2016 2 instances 00:56:37 01:01:45 3 2 Oct 3, 2016 2 instances 16:41:43 16:42:19 Nov Dec 29