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 05:01:45 05:01:56 05:02:05 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:34:02 09:38:28 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 10 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 13:04:56 13:13:25 13:53:57 13:59:16 Jul Aug Sep 19 2 Sep 19, 2016 2 instances 16:28:05 16:31:15 30 Oct 3 2 Oct 3, 2016 2 instances 14:50:44 15:08:25 Nov Dec 29