15 instances from 4 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2020 - 1 instance Jan Feb Mar Apr May Jun Jul 24 Aug Sep Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 7 Jun 21, 2018 7 instances 06:51:31 06:51:35 06:51:37 06:51:41 06:56:56 14:28:28 20:41:09 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:43:46 04:43:53 Nov 8 2 Nov 8, 2017 2 instances 15:43:17 15:43:19 Dec 25 2 Dec 25, 2017 2 instances 06:04:08 12:19:05