19 instances from 5 years 2020 - 3 instances Jan 20 Feb Mar Apr May Jun Jul 1 Aug Sep Oct Nov 15 Dec 2018 - 2 instances Jan 4 Feb Mar Apr May Jun Jul 11 Aug Sep Oct Nov Dec 2017 - 3 instances Jan 1 9 Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2016 - 10 instances Jan Feb 17 Mar Apr May Jun 21 2 Jun 21, 2016 2 instances 11:06:40 19:10:30 22 Jul Aug Sep 20 Oct 1 2 Oct 1, 2016 2 instances 21:53:20 23:08:17 4 3 Oct 4, 2016 3 instances 16:26:46 17:00:33 19:38:17 Nov Dec 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16