20 instances from 5 years 2020 - 2 instances Jan Feb Mar Apr May Jun Jul 2 Aug Sep Oct Nov 14 Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct 27 Nov Dec 2017 - 1 instance Jan 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 15 instances Jan Feb 17 Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 10:17:16 10:31:57 19:34:03 21 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 19:34:07 19:39:40 19:56:37 20:02:40 Oct 1 2 Oct 1, 2016 2 instances 02:10:38 02:16:05 3 3 Oct 3, 2016 3 instances 18:17:37 18:33:20 19:28:43 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16