27 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan 19 Feb Mar Apr May Jun Jul 2 Aug Sep Oct Nov 14 Dec 2019 - 3 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep 18 Oct 26 Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 23 24 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 9 Feb Mar Apr May Jun 25 Jul Aug Sep Oct 6 Nov Dec 28 2016 - 13 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 14:13:39 17:34:23 22:44:40 21 Jul Aug Sep 20 3 Sep 20, 2016 3 instances 15:26:06 16:16:45 21:15:13 Oct 1 2 Oct 1, 2016 2 instances 22:41:03 23:54:13 4 3 Oct 4, 2016 3 instances 17:20:03 17:48:11 20:26:29 Nov Dec 31