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 20:18:07 20:31:50 22 3 Jun 22, 2018 3 instances 04:42:20 11:07:26 11:19:40 23 Jul Aug Sep Oct Nov Dec 2017 - 11 instances Jan 6 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:55:43 13:19:16 13:40:18 19:05:13 19:24:19 19:48:10 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 13:04:13 20:14:08 Nov Dec 25 26 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:30:53 11:36:29 11:36:37 11:38:04 30 2 Sep 30, 2016 2 instances 21:15:57 21:21:44 Oct 3 3 Oct 3, 2016 3 instances 14:25:33 14:25:34 14:25:46 Nov Dec 29