26 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 6 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2018 2 instances 20:22:00 20:35:44 22 3 Jun 22, 2018 3 instances 04:44:01 11:11:20 11:23:25 23 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan 6 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 12:59:34 13:23:05 13:44:08 19:09:01 19:28:06 19:51:55 Jul Aug Sep Oct 2 Nov Dec 25 26 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 11:34:47 11:40:26 11:40:35 11:42:02 30 2 Sep 30, 2016 2 instances 21:21:51 21:27:38 Oct 3 3 Oct 3, 2016 3 instances 14:33:08 14:33:08 14:33:10 Nov Dec