20 instances from 5 years 2021 - 1 instance Jan Feb Mar Apr May Jun 27 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan 23 Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov 13 Dec 2019 - 1 instance Jan Feb Mar Apr May Jun 22 Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan 8 Feb Mar Apr May Jun 23 Jul Aug 29 Sep Oct Nov Dec 2016 - 12 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 10:06:15 10:44:27 12:36:39 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 15:56:35 16:39:48 18:12:33 Oct 1 2 Oct 1, 2016 2 instances 21:22:29 22:38:47 4 3 Oct 4, 2016 3 instances 15:56:49 16:31:31 19:11:23 Nov Dec 30