25 instances from 4 years 2020 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 20 Dec 2018 - 4 instances Jan 6 Feb Mar Apr May Jun 22 2 Jun 22, 2018 2 instances 05:53:54 19:35:35 27 Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan 7 Feb Mar Apr May Jun 23 Jul Aug Sep Oct 2 3 Oct 2, 2017 3 instances 16:49:45 16:50:47 16:51:38 3 Nov Dec 27 2016 - 12 instances Jan Feb Mar Apr May Jun 21 22 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 12:17:43 12:28:40 12:34:25 12:42:35 Oct 1 2 Oct 1, 2016 2 instances 19:17:49 19:28:26 4 3 Oct 4, 2016 3 instances 11:35:17 11:46:06 12:44:00 Nov Dec 30