16 instances from 3 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 01:31:01 01:31:05 01:31:13 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 07:13:26 07:19:37 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 14:14:23 14:25:18 14:34:10 14:38:20 30 2 Sep 30, 2016 2 instances 20:41:48 20:44:45 Oct 3 3 Oct 3, 2016 3 instances 12:48:21 12:57:05 13:13:41 Nov Dec