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 17:56:29 17:56:33 18:07:59 18:08:02 18:12:05 18:12:09 22 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 04:25:44 04:25:55 04:27:29 04:27:39 04:28:03 04:28:13 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 05:07:25 05:07:36 Nov Dec 25 2 Dec 25, 2017 2 instances 06:48:47 06:48:51