23 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov 12 16 Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 1 instance Jan 8 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan 9 Feb Mar Apr May Jun 30 Jul Aug 29 Sep Oct Nov Dec 2016 - 14 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 14:18:27 17:38:37 22:46:47 21 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:09:34 14:50:57 16:08:25 19:43:19 Oct 1 2 4 3 Oct 4, 2016 3 instances 17:29:56 17:57:32 20:35:50 Nov Dec 31