22 instances from 5 years 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 - 6 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2018 6 instances 05:21:17 05:23:20 05:23:23 05:23:46 05:29:09 20:12:38 Jul Aug Sep Oct Nov Dec 2017 - 13 instances Jan 6 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 03:20:40 03:20:59 03:23:51 03:23:55 03:24:09 03:26:49 Jul Aug Sep Oct 2 Nov 2 2 Nov 2, 2017 2 instances 18:34:42 18:34:45 8 2 Nov 8, 2017 2 instances 17:34:31 17:34:35 Dec 25 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 29