19 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 2 instances Jan 21 Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 Dec 2019 - 1 instance Jan Feb Mar Apr May Jun 22 Jul Aug Sep Oct Nov Dec 2018 - 1 instance Jan 12 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 2 11 Feb Mar Apr May Jun 28 Jul Aug Sep Oct 9 Nov Dec 2016 - 10 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 10:11:47 10:49:36 12:30:23 Jul Aug Sep 21 4 Sep 21, 2016 4 instances 21:49:24 22:20:29 22:25:13 22:39:53 Oct 3 2 Oct 3, 2016 2 instances 06:59:52 07:43:00 5 Nov Dec