22 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 28 Jul 1 2 Aug Sep Oct Nov Dec 2017 - 7 instances Jan 6 Feb Mar Apr May Jun 26 Jul Aug 29 Sep Oct 5 Nov 20 2 Nov 20, 2017 2 instances 20:05:36 21:25:40 Dec 29 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:03:50 14:44:50 15:19:26 20:33:09 Oct 1 4 3 Oct 4, 2016 3 instances 15:48:25 16:22:38 19:02:56 Nov Dec 30