30 instances from 4 years 2020 - 1 instance Jan Feb Mar Apr May Jun Jul Aug 4 Sep Oct Nov Dec 2018 - 8 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 13:50:13 14:17:36 14:36:09 15:15:55 22 3 Jun 22, 2018 3 instances 02:35:59 10:14:28 10:26:40 23 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 09:42:26 09:44:13 09:45:37 11:54:22 18:18:33 19:01:35 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 09:34:25 19:25:05 Nov 8 2 Nov 8, 2017 2 instances 20:18:07 20:18:27 Dec 25 2 Dec 25, 2017 2 instances 12:26:42 15:14:59 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:12:36 10:18:15 10:18:20 10:19:26 30 2 Sep 30, 2016 2 instances 19:19:18 19:25:09 Oct 3 3 Oct 3, 2016 3 instances 11:56:19 11:56:35 11:59:20 Nov Dec