21 instances from 4 years 2020 - 3 instances Jan 21 Feb Mar Apr May Jun Jul 3 Aug Sep Oct Nov 16 Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 28 29 Jul 12 Aug Sep Oct Nov Dec 2017 - 3 instances Jan 6 Feb Mar Apr May Jun 21 Jul Aug Sep Oct Nov Dec 31 2016 - 12 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 13:14:01 17:28:19 21:59:44 21 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 15:58:02 16:41:15 18:14:00 30 2 Sep 30, 2016 2 instances 22:05:53 23:14:44 Oct 3 3 Oct 3, 2016 3 instances 15:19:30 15:33:30 16:17:05 Nov Dec