21 instances from 5 years 2020 - 3 instances Jan 19 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 27 Nov Dec 2018 - 2 instances Jan Feb Mar Apr May Jun 22 24 Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan Feb Mar Apr May Jun 23 Jul Aug Sep Oct 4 Nov Dec 29 2016 - 12 instances Jan Feb Mar Apr May Jun 21 22 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 15:54:13 16:44:28 21:25:39 21:43:03 Oct 1 2 Oct 1, 2016 2 instances 22:36:31 23:49:57 4 3 Oct 4, 2016 3 instances 17:15:36 17:43:46 20:21:42 Nov Dec 30