19 instances from 4 years 2020 - 1 instance Jan Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:28:50 02:28:52 02:29:02 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 07:59:52 08:05:55 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 14:51:01 15:02:33 15:10:39 15:14:30 30 2 Sep 30, 2016 2 instances 21:18:22 21:21:00 Oct 3 3 Oct 3, 2016 3 instances 13:24:51 13:34:39 13:51:41 Nov Dec 29