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 19:02:51 19:10:01 19:13:44 19:18:01 19:19:10 22 2 Jun 22, 2018 2 instances 04:19:16 17:17:10 27 Jul Aug Sep Oct Nov Dec 2017 - 14 instances Jan 6 2 Jan 6, 2017 2 instances 16:38:34 16:41:08 8 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 11:37:58 11:43:56 12:00:25 12:06:24 12:19:22 12:25:13 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 11:50:36 11:57:18 Nov 20 Dec 25 2 Dec 25, 2017 2 instances 15:32:35 15:39:24 2016 - 7 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 2 Sep 19, 2016 2 instances 11:13:42 11:20:51 30 2 Sep 30, 2016 2 instances 19:04:52 19:10:39 Oct 3 3 Oct 3, 2016 3 instances 11:35:52 11:36:04 11:36:12 Nov Dec