26 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 - 15 instances Jan Feb 18 Mar Apr May Jun 20 21 3 Jun 21, 2016 3 instances 03:38:26 05:08:44 05:51:48 Jul Aug Sep 19 2 Sep 19, 2016 2 instances 23:44:08 23:51:29 20 2 Sep 20, 2016 2 instances 00:05:49 00:12:58 Oct 1 2 Oct 1, 2016 2 instances 06:44:52 06:46:33 3 2 Oct 3, 2016 2 instances 22:50:06 23:04:29 4 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 17