16 instances from 4 years 2020 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 21 Dec 2018 - 2 instances Jan 1 5 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan 7 Feb Mar Apr May Jun 26 Jul Aug Sep Oct 7 Nov Dec 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 14:25:36 14:29:34 14:44:30 14:48:39 30 2 Sep 30, 2016 2 instances 20:52:23 20:54:51 Oct 3 3 Oct 3, 2016 3 instances 12:59:00 13:07:40 13:24:15 Nov Dec 30