19 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 6 Jun 21, 2018 6 instances 07:24:38 07:24:39 07:24:41 07:32:00 07:32:04 15:58:58 24 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 03:35:42 03:35:53 03:36:06 03:36:16 03:36:33 03:36:43 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:04:27 04:04:37 Nov Dec 25 2 Dec 25, 2017 2 instances 05:38:34 05:38:37