20 instances from 5 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 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 04:16:49 04:16:50 04:16:53 04:17:17 04:17:20 19:46:01 23 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2017 4 instances 02:53:42 04:15:12 04:17:03 04:17:41 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 03:22:23 04:54:20 Nov 2 2 Nov 2, 2017 2 instances 23:09:31 23:09:33 8 2 Nov 8, 2017 2 instances 22:39:19 22:39:21 Dec