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 04:15:01 04:15:05 04:15:25 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:32:04 09:37:19 Jul Aug Sep Oct Nov Dec 25 2016 - 11 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 12:20:58 12:42:12 13:20:57 13:28:36 Jul Aug Sep 19 2 Sep 19, 2016 2 instances 16:26:58 16:30:04 30 Oct 3 3 Oct 3, 2016 3 instances 14:41:33 14:49:37 15:07:18 Nov Dec 29