20 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 03:15:45 03:15:45 03:15:48 03:17:24 03:17:27 19:23:46 22 Jul Aug Sep Oct Nov Dec 2017 - 11 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 02:11:11 02:11:37 02:12:58 03:56:46 03:58:52 03:59:31 Jul Aug Sep Oct 2 Nov 8 2 Nov 8, 2017 2 instances 21:48:30 21:48:32 Dec 25 2 Dec 25, 2017 2 instances 03:48:49 03:48:53