21 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 4 instances Jan 19 Feb Mar Apr May Jun Jul 1 Aug Sep Oct Nov 13 16 Dec 2019 - 5 instances Jan Feb Mar Apr May Jun 22 27 Jul 20 Aug Sep 18 Oct 26 Nov Dec 2018 - 4 instances Jan 8 Feb Mar Apr May Jun 22 23 27 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 10:13:58 11:11:04 Jul Aug 29 Sep Oct 3 Nov Dec 27 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 29