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 07:40:11 07:40:14 07:40:21 07:40:25 07:48:38 07:48:42 16:07:15 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 03:51:28 03:51:32 03:53:36 03:53:39 03:54:12 03:54:16 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:19:39 04:19:43 Nov Dec 25 2 Dec 25, 2017 2 instances 05:54:08 05:54:11