13 instances from 4 years 2020 - 1 instance Jan 19 Feb Mar 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 2017 - 1 instance Jan 8 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:24:10 14:59:06 19:53:49 20:13:29 Oct 1 2 Oct 1, 2016 2 instances 20:55:38 22:10:33 4 3 Oct 4, 2016 3 instances 15:29:35 16:02:39 18:44:03 Nov Dec 30