19 instances from 4 years 2019 - 1 instance Jan Feb 18 Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 01:44:51 01:46:39 Jul Aug Sep Oct Nov Dec 2016 - 14 instances Jan Feb 17 Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 08:24:44 08:34:31 09:56:22 14:12:19 21 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 10:02:08 10:02:28 10:08:25 30 Oct 3 3 Oct 3, 2016 3 instances 10:03:44 10:19:58 11:35:40 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16