18 instances from 3 years 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 5 Jun 21, 2018 5 instances 19:29:50 19:37:49 19:42:05 19:50:55 19:55:11 22 23 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:18:37 12:33:02 12:40:51 12:55:49 13:05:04 13:17:27 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 12:14:05 12:27:17 Nov Dec 25 2 Dec 25, 2017 2 instances 15:58:27 16:14:30