19 instances from 4 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 22 23 6 Jun 23, 2018 6 instances 06:39:32 06:39:36 06:47:38 06:47:42 06:49:31 06:49:35 Jul Aug Sep Oct Nov Dec 2017 - 1 instance Jan 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 08:34:30 08:39:48 08:39:53 08:40:49 30 2 Sep 30, 2016 2 instances 23:36:47 23:42:46 Oct 3 3 Oct 3, 2016 3 instances 17:09:12 17:09:43 17:11:54 Nov Dec 30