20 instances from 4 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2020 - 1 instance Jan Feb Mar Apr May Jun Jul 24 Aug Sep Oct Nov Dec 2018 - 8 instances Jan Feb Mar Apr May Jun 21 8 Jun 21, 2018 8 instances 06:56:39 06:56:42 07:00:20 07:00:22 07:02:12 07:05:35 20:43:14 20:44:39 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 04:09:47 04:09:53 04:11:42 04:11:48 04:12:22 04:12:29 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:49:38 04:49:45 Nov Dec 25 2 Dec 25, 2017 2 instances 06:07:57 06:10:24