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 04:14:43 04:14:45 04:15:02 07:17:13 07:17:20 07:24:08 19:45:15 20:51:20 Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2017 4 instances 02:52:12 04:14:52 04:16:42 04:17:20 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 03:20:01 04:53:46 Nov Dec 25