24 instances from 4 years 2020 - 2 instances Jan Feb Mar Apr May Jun 28 Jul 4 Aug Sep Oct Nov Dec 2018 - 4 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 04:14:28 04:14:58 04:17:54 04:21:18 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 03:59:01 04:04:03 Jul Aug Sep Oct 2 Nov Dec 2016 - 14 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 10:58:18 11:03:05 11:25:58 11:29:15 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:19:26 10:23:56 10:24:00 10:24:40 30 2 Sep 30, 2016 2 instances 18:25:20 18:30:55 Oct 3 3 Oct 3, 2016 3 instances 10:28:32 10:28:42 10:28:42 Nov Dec 29