20 instances from 4 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2018 - 9 instances Jan 10 2 Jan 10, 2018 2 instances 12:12:38 12:12:41 Feb Mar Apr May Jun 21 7 Jun 21, 2018 7 instances 06:32:34 06:32:37 06:33:19 06:33:22 06:38:17 06:38:20 20:32:18 Jul Aug Sep Oct Nov Dec 2017 - 1 instance Jan 8 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 20 4 Sep 20, 2016 4 instances 06:32:26 06:38:01 06:38:03 06:38:03 Oct 2 2 Oct 2, 2016 2 instances 00:52:10 01:05:38 5 3 Oct 5, 2016 3 instances 01:00:33 01:24:23 02:11:24 Nov Dec