30 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 20:17:29 20:31:11 22 3 Jun 22, 2018 3 instances 04:42:04 11:06:49 11:19:03 23 25 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan 6 9 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:55:06 13:18:38 13:39:41 19:04:37 19:23:43 19:47:33 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 13:03:33 20:13:32 Nov Dec 25 26 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:30:15 11:35:51 11:35:59 11:37:27 30 2 Sep 30, 2016 2 instances 21:15:07 21:20:55 Oct 3 3 Oct 3, 2016 3 instances 14:24:34 14:24:35 14:24:48 Nov Dec 29