27 instances from 6 years 2020 - 1 instance Jan 18 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2019 - 3 instances Jan Feb 27 Mar Apr May Jun Jul 20 Aug Sep Oct 26 Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 22 26 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 7 Feb Mar Apr May Jun 22 Jul Aug Sep Oct 3 Nov Dec 26 2016 - 15 instances Jan Feb 18 Mar Apr May Jun 20 21 3 Jun 21, 2016 3 instances 03:06:51 03:29:21 06:23:41 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 01:42:36 01:51:11 02:04:04 02:11:18 Oct 1 2 Oct 1, 2016 2 instances 08:44:35 08:45:01 4 3 Oct 4, 2016 3 instances 00:48:44 01:02:49 01:59:09 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 17