20 instances from 5 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 4 instances Jan 20 Feb Mar Apr May Jun 30 Jul Aug Sep Oct Nov 13 14 Dec 2019 - 3 instances Jan Feb Mar Apr May Jun 22 Jul Aug Sep 18 Oct 26 Nov Dec 2017 - 3 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 10:17:50 11:15:02 Jul Aug Sep Oct Nov Dec 2016 - 9 instances Jan Feb Mar Apr May Jun 21 22 Jul Aug Sep 19 30 2 Sep 30, 2016 2 instances 21:49:41 22:58:42 Oct 3 3 Oct 3, 2016 3 instances 15:03:28 15:17:29 16:01:05 Nov Dec 29