19 instances from 4 years 2020 - 5 instances Jan 18 Feb 12 13 Mar Apr May Jun 29 Jul Aug Sep Oct Nov 13 Dec 2019 - 3 instances Jan Feb 27 Mar 5 Apr May Jun Jul Aug Sep Oct 26 Nov Dec 2018 - 4 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 11:26:11 19:46:19 22 Jul Aug Sep 24 Oct Nov Dec 2017 - 7 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 14:50:08 17:00:18 Jul Aug Sep Oct 2 4 Oct 2, 2017 4 instances 02:56:03 02:59:39 02:59:56 11:31:00 Nov Dec 26