18 instances from 4 years 2020 - 3 instances Jan 18 Feb Mar Apr May Jun 29 Jul Aug Sep Oct Nov 13 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct 26 Nov Dec 2017 - 3 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:47:36 10:44:26 Jul Aug Sep Oct Nov Dec 2016 - 10 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 14:08:03 17:43:32 22:41:07 21 Jul Aug Sep 19 30 Oct 3 3 Oct 3, 2016 3 instances 14:39:50 14:53:03 15:37:38 Nov Dec 29