12 instances from 2 years 2018 - 8 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 15:12:42 15:41:20 15:53:25 15:56:30 22 3 Jun 22, 2018 3 instances 03:07:34 10:46:14 10:58:39 Jul 7 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 21:01:21 21:01:23 Dec 25 26