30 instances from 5 years 2021 - 1 instance Jan Feb Mar 21 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 - 8 instances Jan Feb Mar Apr May Jun 21 7 Jun 21, 2018 7 instances 04:10:29 04:10:33 04:10:55 13:01:46 13:34:31 13:50:32 19:43:26 22 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2017 4 instances 02:49:57 03:08:57 09:24:46 09:26:05 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 03:17:18 09:03:14 Nov 2 2 Nov 2, 2017 2 instances 18:07:02 18:07:20 8 2 Nov 8, 2017 2 instances 17:10:54 17:11:06 Dec 25 2 Dec 25, 2017 2 instances 04:39:22 05:02:34 2016 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 12:20:08 12:25:40 12:25:41 12:26:44 30 Oct 3 3 Oct 3, 2016 3 instances 15:47:42 15:48:43 15:50:04 Nov Dec