21 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2018 6 instances 19:28:57 19:29:25 19:37:45 19:42:01 19:50:51 19:55:07 22 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan 6 2 Jan 6, 2017 2 instances 15:47:00 15:53:31 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:18:32 12:32:59 12:40:47 12:55:45 13:05:00 13:17:23 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 12:14:01 12:27:14 Nov Dec 25 2 Dec 25, 2017 2 instances 15:58:23 16:14:26 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 29