12 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 4 Jun 21, 2018 4 instances 15:12:59 15:41:39 15:53:43 15:56:47 22 3 Jun 22, 2018 3 instances 03:07:41 10:46:31 10:58:57 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 8 2 Nov 8, 2017 2 instances 21:01:43 21:01:45 Dec 25 26