11 instances from 5 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 4 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 04:19:36 04:19:39 04:20:24 19:47:00 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 7 2 Jan 7, 2017 2 instances 01:23:06 01:23:58 Feb Mar Apr May Jun 21 Jul Aug Sep Oct 2 Nov Dec 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 3 Dec