21 instances from 6 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 7 Jun 21, 2018 7 instances 07:37:20 07:37:24 07:37:31 07:37:34 07:45:49 07:45:52 16:44:34 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 03:48:47 03:48:58 03:50:57 03:51:07 03:51:41 03:51:51 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:17:12 04:17:23 Nov Dec 25 2 Dec 25, 2017 2 instances 05:51:26 05:51:29 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct 24 Nov Dec