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 29 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 02:52:56 10:47:12 19:10:30 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 08:00:28 14:52:30 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 00:52:07 00:53:50 06:51:56 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 14:52:10 16:48:04 18:23:04 18:46:27 30 2 Sep 30, 2016 2 instances 21:21:58 22:47:30 Oct 3 3 Oct 3, 2016 3 instances 15:46:34 16:04:41 16:50:31 Nov Dec 29