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 16:06:55 16:06:59 16:19:03 16:19:07 16:22:42 16:22:46 22 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan 6 2 Jan 6, 2017 2 instances 15:30:41 15:30:41 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 11:08:46 11:08:50 11:15:29 11:15:33 11:25:17 11:25:20 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 11:06:24 11:06:28 Nov Dec 25 2 Dec 25, 2017 2 instances 14:12:56 14:13:00 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 29