6 instances from 3 years 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep 23 Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 09:39:33 09:40:02 09:41:55 Jul Aug Sep Oct Nov Dec 2017 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 25