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 6 Jun 21, 2018 6 instances 06:56:46 06:56:49 07:02:19 13:46:36 14:31:29 20:43:16 22 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 04:10:07 04:10:15 04:12:02 04:12:09 04:12:43 04:12:50 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:49:59 04:50:07 Nov 8 2 Nov 8, 2017 2 instances 14:45:34 14:45:36 Dec 25 2 Dec 25, 2017 2 instances 06:08:04 12:22:49