16 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 06:59:20 06:59:21 07:04:32 13:48:09 14:15:32 14:34:08 20:44:12 Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan Feb Mar Apr May Jun Jul Aug 28 Sep Oct 2 2 Oct 2, 2017 2 instances 04:52:09 04:52:17 Nov 2 2 Nov 2, 2017 2 instances 20:21:23 20:21:26 Dec 25 2 Dec 25, 2017 2 instances 06:09:49 12:24:36