10 instances from 2 years 2018 - 4 instances Jan Feb Mar Apr May Jun 22 2 Jun 22, 2018 2 instances 17:41:44 18:19:12 23 27 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan Feb Mar Apr May Jun Jul Aug 29 Sep Oct 2 4 Oct 2, 2017 4 instances 15:40:06 15:40:08 15:41:46 21:32:50 Nov Dec 25