21 instances from 4 years 2020 - 3 instances Jan 18 Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov 13 Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:08:24 07:13:40 07:26:20 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 03:43:43 04:05:17 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:20:33 10:20:44 10:20:45 10:25:16 30 2 Sep 30, 2016 2 instances 18:16:46 18:21:12 Oct 3 3 Oct 3, 2016 3 instances 10:22:57 10:23:19 10:39:35 Nov Dec 29