16 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 07:09:03 07:09:06 07:09:07 07:15:00 07:15:04 20:48:11 24 Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan 9 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 25 2 Dec 25, 2017 2 instances 06:23:24 06:23:28 2016 - 5 instances Jan Feb Mar Apr May Jun Jul Aug Sep 21 3 Sep 21, 2016 3 instances 04:51:55 04:57:33 04:57:33 Oct 3 2 Oct 3, 2016 2 instances 06:53:04 07:33:59 Nov Dec