20 instances from 3 years 2020 - 3 instances Jan 19 Feb 12 13 Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 8 instances Jan 7 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 06:52:54 06:59:13 Jul Aug Sep Oct 2 3 Oct 2, 2017 3 instances 04:30:13 04:33:52 04:36:50 4 Nov Dec 26 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 13:22:15 13:32:07 13:40:32 13:42:16 30 Oct 3 3 Oct 3, 2016 3 instances 11:56:25 12:02:55 12:21:59 Nov Dec 30