18 instances from 5 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 2 instances Jan Feb Mar Apr May Jun Jul 1 Aug Sep Oct Nov 14 Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct 26 Nov Dec 2017 - 2 instances Jan 8 Feb Mar Apr May Jun 23 Jul Aug Sep Oct Nov Dec 2016 - 12 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2016 2 instances 11:12:52 19:21:39 22 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:54:50 15:29:13 20:25:45 20:42:37 Oct 1 4 3 Oct 4, 2016 3 instances 16:02:08 16:36:49 19:16:45 Nov Dec 30