20 instances from 5 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov 13 16 Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2017 - 7 instances Jan 7 Feb Mar Apr May Jun 22 Jul Aug 29 Sep Oct 3 Nov 20 2 Nov 20, 2017 2 instances 20:05:30 21:25:33 Dec 27 2016 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 15:33:17 16:24:33 18:15:56 18:38:08 30 2 Sep 30, 2016 2 instances 22:07:00 23:39:10 Oct 3 Nov Dec 30