29 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 6 Dec 2020 - 3 instances Jan 18 Feb Mar Apr May Jun 30 Jul Aug Sep Oct Nov 14 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct 27 Nov Dec 2018 - 5 instances Jan 1 Feb Mar Apr May Jun 21 23 24 Jul 3 Aug Sep Oct Nov Dec 2017 - 4 instances Jan 9 Feb Mar Apr May Jun 23 Jul Aug Sep Oct 7 Nov Dec 25 2016 - 14 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 13:26:55 23:25:13 23:53:30 21 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 10:06:28 10:13:04 10:21:21 10:22:28 Oct 1 2 Oct 1, 2016 2 instances 17:10:50 17:18:23 4 3 Oct 4, 2016 3 instances 09:26:26 09:39:25 10:35:42 Nov Dec 31