24 instances from 4 years 2020 - 4 instances Jan 18 Feb 12 13 Mar Apr May Jun 27 Jul Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:50:47 06:59:32 07:11:19 Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 03:26:29 03:48:18 Jul Aug Sep Oct 2 3 Oct 2, 2017 3 instances 02:30:44 02:33:20 03:15:24 Nov Dec 25 2016 - 10 instances Jan Feb Mar Apr May Jun 20 2 Jun 20, 2016 2 instances 09:18:25 12:01:28 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 09:52:02 09:52:20 09:52:21 09:56:44 30 Oct 3 2 Oct 3, 2016 2 instances 09:54:30 10:10:42 Nov Dec 29