17 instances from 3 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2018 6 instances 05:29:42 05:29:46 05:31:50 08:30:18 08:39:08 20:17:28 24 Jul Aug Sep Oct Nov Dec 2017 - 9 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 03:26:35 03:26:57 03:29:38 04:32:00 04:33:53 04:34:28 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 03:55:00 05:18:29 Nov Dec 25