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 07:59:59 08:00:03 08:00:53 08:00:57 08:08:31 08:08:34 21:02:01 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 05:04:04 05:04:14 Nov 2 2 Nov 2, 2017 2 instances 20:18:08 20:18:10 Dec 25 2 Dec 25, 2017 2 instances 06:45:26 06:45:29