30 instances from 7 years 2023 - 1 instance Jan Feb Mar 24 Apr May Jun Jul Aug Sep Oct Nov Dec 2021 - 1 instance Jan 24 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2020 - 5 instances Jan 18 Feb 12 13 Mar Apr May Jun 27 Jul Aug Sep Oct Nov 12 Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:35:11 06:54:14 06:59:30 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 03:20:53 03:38:25 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 14 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 10:22:20 11:01:27 11:05:28 12:45:45 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 14:47:48 14:51:47 15:06:53 15:10:50 30 2 Sep 30, 2016 2 instances 21:17:24 21:18:42 Oct 3 3 Oct 3, 2016 3 instances 13:21:52 13:30:42 13:47:57 Nov Dec 29