20 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 4 instances Jan 19 Feb Mar Apr May Jun Jul 1 Aug Sep Oct Nov 12 14 Dec 2019 - 3 instances Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct 26 27 Nov Dec 2018 - 2 instances Jan 12 Feb Mar Apr May Jun Jul 12 Aug Sep Oct Nov Dec 2017 - 3 instances Jan 1 9 Feb Mar Apr May Jun 23 Jul Aug Sep Oct Nov Dec 2016 - 7 instances Jan Feb Mar Apr May Jun 26 2 Jun 26, 2016 2 instances 17:19:27 18:19:20 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 15:53:21 16:36:36 18:09:21 Oct 3 2 Oct 3, 2016 2 instances 12:59:24 14:54:52 Nov Dec