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 17:46:54 17:46:58 17:58:25 17:58:28 18:02:36 18:02:40 22 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 5 Jun 21, 2017 5 instances 11:00:46 11:10:19 11:22:01 11:51:24 22:35:12 Jul Aug 28 Sep Oct 2 3 Nov Dec 25 2 Dec 25, 2017 2 instances 14:40:09 15:12:22