18 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:04:18 02:04:43 02:05:16 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:31:03 04:31:03 Jul Aug Sep Oct 2 Nov 20 Dec 25 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:48:28 10:53:50 10:53:57 10:56:30 30 Oct 3 3 Oct 3, 2016 3 instances 11:03:18 11:03:20 11:03:22 Nov Dec 29