29 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 4 Jun 21, 2018 4 instances 15:10:07 15:38:50 15:50:02 15:54:00 22 3 Jun 22, 2018 3 instances 03:06:32 10:43:48 10:56:12 23 Jul Aug Sep Oct Nov Dec 2017 - 14 instances Jan 6 2 Jan 6, 2017 2 instances 16:35:23 16:38:30 Feb Mar Apr May Jun 21 5 Jun 21, 2017 5 instances 10:48:41 10:50:12 18:46:43 19:06:34 19:29:43 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 10:42:35 19:53:24 Nov 8 2 Nov 8, 2017 2 instances 20:58:03 20:58:05 20 Dec 25 26 2016 - 6 instances Jan Feb Mar Apr May Jun Jul Aug Sep 29 30 Oct 3 3 Oct 3, 2016 3 instances 13:13:50 13:13:54 13:13:55 Nov Dec 29