18 instances from 5 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan 22 Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov 12 Dec 2019 - 4 instances Jan Feb 18 2 Feb 18, 2019 2 instances 12:08:12 12:08:14 Mar Apr May Jun Jul Aug Sep 18 Oct 26 Nov Dec 2018 - 4 instances Jan 5 4 Jan 5, 2018 4 instances 04:47:00 04:47:25 04:51:27 19:06:58 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan Feb Mar Apr May Jun 23 Jul Aug 29 3 Aug 29, 2017 3 instances 17:02:54 17:03:58 17:13:17 Sep Oct 7 Nov Dec 27