20 instances from 5 years 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 - 2 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 04:46:15 11:46:11 Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan 1 10 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 25 2016 - 9 instances Jan Feb Mar Apr May Jun 23 3 Jun 23, 2016 3 instances 19:53:12 22:04:17 22:30:12 Jul Aug Sep 22 4 Sep 22, 2016 4 instances 03:24:04 08:09:37 18:08:54 19:16:28 Oct 3 2 Oct 3, 2016 2 instances 13:03:12 17:08:50 Nov Dec