19 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 6 Jun 21, 2018 6 instances 07:27:24 07:27:25 07:27:28 07:35:12 07:35:15 16:04:58 24 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 03:38:12 03:38:23 03:38:36 03:38:46 03:39:01 03:39:11 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:07:51 04:08:01 Nov Dec 25 2 Dec 25, 2017 2 instances 05:42:01 05:42:04