18 instances from 4 years 2020 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 14 Dec 2018 - 1 instance Jan 12 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 8 instances Jan 8 Feb Mar Apr May Jun 26 Jul Aug Sep Oct 4 3 Oct 4, 2017 3 instances 00:50:31 01:02:22 01:14:16 9 Nov 20 2 Nov 20, 2017 2 instances 20:16:24 21:36:44 Dec 2016 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 3 Sep 19, 2016 3 instances 09:35:18 09:36:05 09:50:16 30 2 Sep 30, 2016 2 instances 23:44:19 23:48:39 Oct 3 2 Oct 3, 2016 2 instances 17:07:32 18:02:55 Nov Dec 30