24 instances from 6 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 04:09:19 04:09:22 04:09:42 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:48:29 09:52:24 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 13 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 12:10:31 12:49:48 13:10:19 13:36:41 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 16:18:43 16:33:31 16:39:14 16:42:13 30 Oct 3 3 Oct 3, 2016 3 instances 14:54:05 15:02:09 15:19:43 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16