18 instances from 3 years 2018 - 7 instances Jan Feb Mar Apr May Jun Jul 2 4 6 Jul 4, 2018 6 instances 07:20:23 07:20:26 07:50:46 07:50:49 11:28:52 11:28:56 Aug Sep Oct Nov Dec 2017 - 1 instance Jan 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 08:28:10 08:33:25 08:33:31 08:34:27 Oct 1 2 Oct 1, 2016 2 instances 13:18:08 13:23:47 4 3 Oct 4, 2016 3 instances 10:27:28 10:31:19 10:46:48 Nov Dec 30