28 instances from 5 years 2020 - 5 instances Jan 19 Feb Mar Apr May Jun 28 Jul 2 Aug Sep Oct Nov 12 14 Dec 2019 - 3 instances Jan Feb Mar Apr May Jun Jul 20 2 Jul 20, 2019 2 instances 11:11:11 17:50:25 Aug Sep Oct 27 Nov Dec 2018 - 2 instances Jan 11 12 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 8 Feb Mar Apr May Jun 22 25 Jul Aug 30 Sep Oct 6 Nov Dec 25 2016 - 12 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 09:09:56 11:15:16 11:22:14 12:13:13 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 09:08:22 09:33:23 09:48:29 30 2 Sep 30, 2016 2 instances 17:04:43 17:33:18 Oct 3 2 Oct 3, 2016 2 instances 09:39:41 09:50:30 Nov Dec 30