21 instances from 3 years 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 21 Jul Aug Sep Oct 2 Nov Dec 26 2016 - 14 instances Jan Feb Mar Apr May Jun 20 21 3 Jun 21, 2016 3 instances 01:48:24 03:52:24 03:56:19 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 19:36:46 19:42:21 19:59:13 20:05:19 Oct 1 2 Oct 1, 2016 2 instances 02:13:19 02:18:44 3 3 Oct 3, 2016 3 instances 18:20:16 18:35:58 19:31:19 Nov Dec 29