20 instances from 5 years 2021 - 1 instance Jan Feb Mar Apr May Jun 27 Jul Aug Sep Oct Nov Dec 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 04:16:34 04:16:37 04:16:57 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:33:16 09:37:53 Jul Aug Sep Oct Nov Dec 25 2016 - 11 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 12:22:04 12:45:41 13:21:35 13:25:53 Jul Aug Sep 19 2 Sep 19, 2016 2 instances 16:27:30 16:30:36 30 Oct 3 3 Oct 3, 2016 3 instances 14:42:04 14:50:09 15:07:50 Nov Dec 29