8 instances from 2 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 19:32:05 22:39:30 22 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan Feb Mar Apr May Jun 22 2 Jun 22, 2017 2 instances 19:10:40 19:10:43 Jul Aug Sep Oct 3 2 Oct 3, 2017 2 instances 18:41:27 18:41:30 Nov Dec 27