20 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan 20 Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov 12 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 - 4 instances Jan 6 Feb Mar Apr May Jun 23 Jul Aug Sep Oct 5 Nov Dec 29 2016 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 08:48:56 09:10:39 09:15:23 09:32:35 30 Oct 3 2 Oct 3, 2016 2 instances 15:04:45 15:49:18 Nov Dec 29