10 instances from 3 years 2020 - 3 instances Jan 20 Feb Mar Apr May Jun Jul 1 Aug Sep Oct Nov 20 Dec 2018 - 6 instances Jan 7 Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 05:53:42 13:56:24 18:46:08 22 2 Jun 22, 2018 2 instances 18:15:54 18:30:40 Jul Aug Sep Oct Nov Dec 2017 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 25