21 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 06:50:12 06:50:16 06:50:24 06:50:27 06:55:38 14:28:39 20:40:37 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 04:06:05 04:06:12 04:08:03 04:08:10 04:08:44 04:08:50 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:42:25 04:42:31 Nov 8 2 Nov 8, 2017 2 instances 16:06:03 16:06:05 Dec 25 2 Dec 25, 2017 2 instances 06:03:05 12:19:25