28 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 20:09:59 20:23:45 22 4 Jun 22, 2018 4 instances 04:38:56 07:16:21 10:59:34 11:11:50 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan 6 2 Jan 6, 2017 2 instances 16:49:14 16:51:29 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:47:46 13:11:18 13:32:26 18:57:27 19:16:35 19:40:24 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 12:56:07 20:06:28 Nov Dec 25 26 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 3 Sep 19, 2016 3 instances 11:22:50 11:28:26 11:29:58 30 2 Sep 30, 2016 2 instances 21:02:07 21:09:17 Oct 3 3 Oct 3, 2016 3 instances 14:07:57 14:07:57 14:09:51 Nov Dec 29