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 7 Jun 21, 2018 7 instances 04:38:19 04:38:22 04:38:25 04:38:28 04:40:03 04:40:06 19:55:15 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 5 Jun 21, 2017 5 instances 11:02:52 11:12:26 11:24:07 11:52:08 22:35:49 Jul Aug 28 Sep Oct 5 2 Oct 5, 2017 2 instances 10:01:29 10:05:25 Nov Dec 28 2 Dec 28, 2017 2 instances 21:26:27 21:26:30