19 instances from 4 years 2020 - 1 instance Jan 21 Feb Mar Apr May Jun Jul Aug Sep Oct Nov 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 10:24:33 11:22:21 Jul Aug Sep Oct Nov Dec 2016 - 13 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 14:05:22 17:40:37 22:39:07 21 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 15:47:25 16:30:44 18:03:19 30 2 Sep 30, 2016 2 instances 21:55:46 23:04:47 Oct 3 3 Oct 3, 2016 3 instances 15:09:32 15:23:34 16:07:08 Nov Dec 29