25 instances from 6 years 2020 - 1 instance Jan 18 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2019 - 2 instances Jan Feb 27 Mar Apr May Jun Jul Aug Sep Oct 26 Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 22 26 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 7 Feb Mar Apr May Jun 22 Jul Aug Sep Oct 3 Nov Dec 26 2016 - 14 instances Jan Feb 18 Mar Apr May Jun 20 21 2 Jun 21, 2016 2 instances 06:07:45 06:51:02 Jul Aug Sep 19 2 Sep 19, 2016 2 instances 23:52:29 23:59:57 20 2 Sep 20, 2016 2 instances 00:14:10 00:21:19 Oct 1 2 Oct 1, 2016 2 instances 06:53:20 06:54:55 3 2 Oct 3, 2016 2 instances 22:58:29 23:12:50 4 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 17