20 instances from 4 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 22 7 Jun 22, 2018 7 instances 03:13:22 03:13:26 03:22:17 03:22:21 04:04:20 04:04:23 06:11:28 Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 25 2 Dec 25, 2017 2 instances 19:17:44 19:17:47 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 08:36:18 08:41:37 08:41:42 08:42:37 Oct 1 2 Oct 1, 2016 2 instances 05:14:11 05:21:39 3 4 2 Oct 4, 2016 2 instances 00:01:05 00:02:04 Nov Dec