15 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 7 Jun 21, 2018 7 instances 07:57:00 07:57:03 07:57:52 07:57:55 08:05:29 08:05:33 21:01:05 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 05:11:20 05:11:30 Nov 2 2 Nov 2, 2017 2 instances 22:49:36 22:49:38 Dec 25 2 Dec 25, 2017 2 instances 06:52:42 06:52:45