15 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 03:01:00 03:01:01 03:01:03 03:01:29 03:01:33 19:18:34 22 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 02:19:59 04:26:58 Nov 2 2 Nov 2, 2017 2 instances 18:01:30 18:01:32 Dec 25 2 Dec 25, 2017 2 instances 03:33:15 03:33:18