22 instances from 4 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2018 6 instances 12:39:04 12:39:08 13:13:33 13:13:36 13:29:47 13:29:50 22 Jul Aug Sep Oct Nov Dec 2017 - 13 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 08:55:21 08:58:50 09:00:04 09:05:33 09:06:46 09:09:56 Jul Aug 28 Sep Oct 2 2 Oct 2, 2017 2 instances 08:31:44 08:39:24 Nov 2 2 Nov 2, 2017 2 instances 20:14:54 20:14:57 Dec 25 2 Dec 25, 2017 2 instances 11:24:14 11:24:18