20 instances from 4 years 2020 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 15 Dec 2018 - 1 instance Jan 4 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan 3 11 Feb Mar Apr May Jun 26 Jul Aug Sep Oct 4 3 Oct 4, 2017 3 instances 00:18:40 00:23:54 00:30:30 10 Nov Dec 2016 - 10 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 10:04:05 10:55:44 10:57:20 12:39:08 Jul Aug Sep 22 4 Sep 22, 2016 4 instances 00:37:05 01:05:10 01:15:21 01:48:55 Oct 4 2 Oct 4, 2016 2 instances 22:23:53 23:48:46 Nov Dec