26 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 6 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 20:23:38 20:37:23 22 3 Jun 22, 2018 3 instances 04:44:43 11:12:55 11:25:01 23 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan 6 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 13:01:13 13:24:43 13:45:46 19:10:34 19:29:38 19:53:28 Jul Aug Sep Oct 2 Nov Dec 25 26 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:36:24 11:42:02 11:42:12 11:43:39 30 2 Sep 30, 2016 2 instances 21:26:44 21:30:42 Oct 3 3 Oct 3, 2016 3 instances 14:36:30 14:36:31 14:36:34 Nov Dec