17 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 06:52:40 06:52:47 06:58:06 06:58:09 13:43:44 14:11:27 20:41:33 Jul Aug Sep Oct Nov Dec 2017 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:44:28 04:44:35 Nov 2 2 Nov 2, 2017 2 instances 22:56:53 22:56:55 8 2 Nov 8, 2017 2 instances 14:39:06 14:39:08 Dec 25 2 Dec 25, 2017 2 instances 06:04:29 12:19:38