23 instances from 6 years 2021 - 2 instances Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov 6 Dec 2020 - 4 instances Jan 18 Feb Mar Apr May Jun 29 Jul Aug 4 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 28 2 Jun 28, 2018 2 instances 05:27:09 10:27:00 29 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:49:53 10:46:43 Jul Aug Sep Oct Nov Dec 26 2016 - 8 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 14:16:08 17:36:43 22:49:11 21 Jul Aug Sep 30 Oct 3 2 Oct 3, 2016 2 instances 14:55:50 15:40:24 Nov Dec 29