18 instances from 4 years 2021 - 1 instance Jan Feb Mar 20 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 2018 - 7 instances Jan Feb Mar Apr May Jun 21 7 Jun 21, 2018 7 instances 06:32:07 06:32:10 06:32:52 06:32:55 06:37:48 06:37:52 20:32:10 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 06:32:20 06:37:55 06:37:57 06:37:57 Oct 2 2 Oct 2, 2016 2 instances 00:52:03 01:05:31 5 3 Oct 5, 2016 3 instances 01:00:26 01:24:15 02:11:11 Nov Dec