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 04:12:17 04:12:21 04:12:41 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:31:36 09:36:55 Jul Aug Sep Oct Nov Dec 25 2016 - 11 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 12:31:15 12:42:58 13:27:13 13:27:34 Jul Aug Sep 19 2 Sep 19, 2016 2 instances 16:26:34 16:29:40 30 Oct 3 3 Oct 3, 2016 3 instances 14:41:08 14:49:13 15:06:55 Nov Dec 29