22 instances from 6 years 2023 - 1 instance Jan Feb Mar 26 Apr May Jun Jul Aug Sep Oct Nov Dec 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan 19 Feb Mar Apr May Jun Jul 1 Aug Sep Oct Nov 12 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep 18 Oct Nov Dec 2017 - 4 instances Jan 8 Feb Mar Apr May Jun 23 Jul Aug Sep Oct Nov 20 2 Nov 20, 2017 2 instances 20:01:42 21:21:41 Dec 2016 - 11 instances Jan Feb Mar Apr May Jun 21 22 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:46:08 15:20:44 20:17:03 20:34:05 Oct 1 4 3 Oct 4, 2016 3 instances 15:49:43 16:24:08 19:04:14 Nov Dec 30