9 instances from 2 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 4 Jun 21, 2018 4 instances 14:38:21 15:04:45 15:06:41 15:22:33 22 3 Jun 22, 2018 3 instances 02:53:01 05:13:39 05:52:43 24 Jul Aug Sep Oct Nov Dec