24 instances from 5 years 2020 - 2 instances Jan Feb Mar Apr May Jun 28 Jul 4 Aug Sep Oct Nov Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct Nov Dec 2018 - 4 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 05:03:48 05:04:29 05:06:47 05:09:59 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 6 Feb Mar Apr May Jun 21 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 13 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 11:10:38 11:33:18 11:38:17 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:42:45 10:47:10 10:47:13 10:47:55 30 2 Sep 30, 2016 2 instances 18:50:09 18:55:40 Oct 3 3 Oct 3, 2016 3 instances 10:53:06 10:53:14 10:53:14 Nov Dec 29