16 instances from 3 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 8 instances Jan Feb Mar Apr May Jun 21 8 Jun 21, 2018 8 instances 04:14:33 04:14:35 04:14:56 07:17:07 07:17:15 07:24:02 19:45:10 20:51:15 Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2017 4 instances 02:52:08 04:14:47 04:16:38 04:17:16 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 03:19:54 04:53:41 Nov Dec 25