30 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 8 instances Jan Feb Mar Apr May Jun 21 5 Jun 21, 2018 5 instances 19:02:55 19:10:05 19:13:47 19:18:05 19:19:16 22 2 Jun 22, 2018 2 instances 04:19:18 17:17:13 27 Jul Aug Sep Oct Nov Dec 2017 - 14 instances Jan 6 2 Jan 6, 2017 2 instances 16:38:37 16:41:12 8 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 11:38:01 11:43:59 12:00:28 12:06:27 12:19:25 12:25:17 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 11:50:39 11:57:21 Nov 20 Dec 25 2 Dec 25, 2017 2 instances 15:32:38 15:39:27 2016 - 7 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 2 Sep 19, 2016 2 instances 11:13:46 11:20:55 30 2 Sep 30, 2016 2 instances 19:04:59 19:10:45 Oct 3 3 Oct 3, 2016 3 instances 11:36:06 11:36:08 11:36:19 Nov Dec