22 instances from 4 years 2020 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 15 Dec 2018 - 1 instance Jan 8 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 Feb Mar Apr May Jun 22 Jul Aug Sep Oct 2 3 Oct 2, 2017 3 instances 12:26:57 12:30:08 12:31:36 3 Nov Dec 2016 - 14 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 09:42:40 10:54:12 10:59:12 12:27:32 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 13:30:16 13:40:14 13:48:37 13:50:17 30 2 Sep 30, 2016 2 instances 19:57:04 20:00:29 Oct 3 3 Oct 3, 2016 3 instances 12:04:32 12:11:06 12:29:58 Nov Dec 29