25 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 27 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan Feb Mar Apr May Jun 28 Jul 20 2 Jul 20, 2020 2 instances 08:05:23 08:06:38 Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:21:37 04:21:40 04:22:00 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:45:22 09:49:23 Jul Aug Sep Oct Nov Dec 25 2016 - 13 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 12:08:53 12:36:50 13:08:46 13:34:00 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 16:17:19 16:32:08 16:37:51 16:40:49 30 Oct 3 3 Oct 3, 2016 3 instances 14:52:42 15:00:46 15:18:20 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16