22 instances from 5 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 - 4 instances Jan Feb Mar Apr May Jun 22 Jul 20 Aug Sep Oct 26 27 Nov Dec 2017 - 2 instances Jan 8 Feb Mar Apr May Jun 23 Jul Aug Sep Oct Nov Dec 2016 - 12 instances Jan Feb Mar Apr May Jun 21 22 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 15:34:17 16:24:54 21:05:37 21:23:22 Oct 1 2 Oct 1, 2016 2 instances 22:14:44 23:28:29 4 3 Oct 4, 2016 3 instances 16:53:23 17:22:27 20:00:05 Nov Dec 30