20 instances from 5 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 2 instances Jan Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov 13 Dec 2019 - 3 instances Jan Feb Mar Apr May Jun 22 Jul Aug Sep 18 Oct 26 Nov Dec 2017 - 2 instances Jan 8 Feb Mar Apr May Jun 26 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 14:29:15 15:04:08 19:58:55 20:18:27 Oct 1 2 Oct 1, 2016 2 instances 21:00:37 22:15:36 4 3 Oct 4, 2016 3 instances 15:34:34 16:07:39 18:49:03 Nov Dec 30