20 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 12:39:32 12:39:35 13:14:04 13:14:07 13:30:14 13:30:18 22 Jul Aug Sep Oct Nov Dec 2017 - 11 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 08:55:41 08:59:10 09:00:24 09:05:36 09:06:49 09:10:00 Jul Aug 28 Sep Oct 2 2 Oct 2, 2017 2 instances 08:32:05 08:39:28 Nov Dec 25 2 Dec 25, 2017 2 instances 11:24:41 11:24:44