20 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:06:28 02:06:28 02:06:28 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 6 Feb Mar Apr May Jun Jul Aug Sep Oct 2 Nov 21 Dec 25 2016 - 13 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 08:43:20 08:46:00 09:34:06 09:41:43 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 08:28:24 08:33:04 08:33:07 08:33:22 30 Oct 3 3 Oct 3, 2016 3 instances 08:33:38 08:33:49 08:34:00 Nov Dec 29