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 30 Jul Aug Sep Oct Nov 14 Dec 2019 - 4 instances Jan Feb Mar Apr May Jun 22 Jul 20 Aug Sep 18 Oct 26 Nov Dec 2017 - 2 instances Jan 8 Feb Mar Apr May Jun 23 Jul Aug Sep Oct Nov Dec 2016 - 11 instances Jan Feb Mar Apr May Jun 21 22 Jul Aug Sep 20 3 Sep 20, 2016 3 instances 15:31:57 16:22:34 21:21:02 Oct 1 2 Oct 1, 2016 2 instances 22:12:23 23:26:07 4 3 Oct 4, 2016 3 instances 16:51:03 17:20:06 19:57:43 Nov Dec 30