20 instances from 5 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 2 instances Jan 20 Feb Mar Apr May Jun Jul Aug Sep Oct Nov 12 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun 22 Jul Aug Sep Oct 26 Nov Dec 2017 - 4 instances Jan 9 Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov 20 2 Nov 20, 2017 2 instances 20:02:17 21:22:16 Dec 2016 - 11 instances Jan Feb Mar Apr May Jun 21 22 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:32:22 15:07:16 20:02:07 20:21:34 Oct 1 4 3 Oct 4, 2016 3 instances 15:37:24 16:10:28 18:51:52 Nov Dec 30