21 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 05:01:00 05:01:10 05:01:19 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:31:07 09:36:34 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 11 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 13:07:26 13:13:53 13:51:49 14:01:32 Jul Aug Sep 19 2 Sep 19, 2016 2 instances 16:26:08 16:29:14 30 Oct 3 3 Oct 3, 2016 3 instances 14:40:42 14:48:47 15:06:29 Nov Dec 29