21 instances from 3 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 14:37:16 14:37:20 15:04:01 15:21:48 22 3 Jun 22, 2018 3 instances 02:52:43 04:57:50 05:08:04 27 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 10:17:37 10:19:56 10:21:29 15:20:36 15:46:48 16:01:42 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 10:12:51 16:03:34 Nov 8 2 Nov 8, 2017 2 instances 20:16:48 20:16:50 Dec 25 2 Dec 25, 2017 2 instances 13:13:05 20:35:54