16 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 27 Jul Aug Sep Oct Nov Dec 2020 - 2 instances Jan Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov 13 Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 1 instance Jan 15 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan 1 10 Feb Mar Apr May Jun Jul 3 Aug Sep Oct Nov Dec 2016 - 8 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 14:08:38 14:09:43 22:42:48 21 Jul Aug Sep 19 2 Sep 19, 2016 2 instances 16:22:22 18:14:37 Oct 3 2 Oct 3, 2016 2 instances 13:25:19 15:40:10 Nov Dec