17 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan 18 Feb Mar Apr May Jun 29 Jul Aug Sep Oct Nov 14 Dec 2019 - 3 instances Jan Feb 27 Mar Apr May Jun Jul 20 Aug Sep Oct 26 Nov Dec 2018 - 4 instances Jan 8 Feb Mar Apr May Jun 22 23 27 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 10:53:28 11:56:03 Jul Aug Sep Oct 4 Nov Dec 27 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 29