30 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 6 Dec 2020 - 4 instances Jan 18 Feb Mar Apr May Jun 30 Jul Aug Sep Oct Nov 12 13 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct 26 Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:53:55 10:47:52 19:11:10 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 08:00:56 14:53:04 Jul Aug Sep Oct 2 Nov Dec 25 26 2016 - 14 instances Jan Feb Mar Apr May Jun 20 21 3 Jun 21, 2016 3 instances 00:56:52 01:00:21 07:07:30 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 14:59:41 16:55:34 18:30:41 18:54:00 30 2 Sep 30, 2016 2 instances 21:29:33 22:55:52 Oct 3 3 Oct 3, 2016 3 instances 15:54:05 16:12:24 16:58:08 Nov Dec 29