12 instances from 4 years 2020 - 3 instances Jan 18 Feb Mar Apr May Jun 30 Jul Aug Sep Oct Nov 13 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct 26 Nov Dec 2018 - 6 instances Jan 7 8 Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:19:56 11:02:17 19:26:28 22 Jul Aug Sep Oct Nov Dec 2017 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 25