21 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 30 Jul Aug Sep Oct Nov 13 Dec 2019 - 3 instances Jan Feb Mar Apr May Jun 22 Jul Aug Sep 18 Oct 26 Nov Dec 2018 - 2 instances Jan 5 Feb Mar Apr May Jun Jul 18 Aug Sep Oct Nov Dec 2017 - 4 instances Jan 1 9 Feb Mar Apr May Jun 26 Jul Aug Sep Oct 9 Nov Dec 2016 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 3 Sep 19, 2016 3 instances 15:14:02 15:58:08 17:28:22 Oct 1 2 Oct 1, 2016 2 instances 20:46:59 22:02:16 4 3 Oct 4, 2016 3 instances 15:20:46 15:53:52 18:35:22 Nov Dec