16 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 13 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct 26 Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 17:53:38 22:50:03 26 Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:54:39 10:51:35 Jul Aug Sep Oct Nov Dec 2016 - 4 instances Jan Feb Mar Apr May Jun Jul Aug Sep 30 Oct 3 2 Oct 3, 2016 2 instances 15:00:34 15:45:09 Nov Dec 29