22 instances from 5 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 07:49:29 07:49:33 07:50:23 07:50:27 07:57:56 07:57:59 20:58:39 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan 6 7 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 03:53:23 03:53:33 03:55:30 03:55:40 03:56:11 03:56:21 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:21:41 04:21:51 Nov Dec 25 2 Dec 25, 2017 2 instances 06:42:09 06:42:12 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 29