32 instances from 4 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 8 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 14:46:15 15:15:26 15:22:39 15:30:31 22 3 Jun 22, 2018 3 instances 02:56:48 10:21:06 10:33:30 Jul 9 Aug Sep Oct Nov Dec 2017 - 15 instances Jan 6 2 Jan 6, 2017 2 instances 16:07:02 16:10:16 10 Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 10:23:31 10:25:50 10:27:25 18:24:06 18:44:58 19:07:07 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 10:20:05 19:31:15 Nov 8 2 Nov 8, 2017 2 instances 20:27:05 20:27:07 Dec 25 26 2016 - 8 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:30:32 10:36:06 10:36:08 10:36:22 Oct 3 3 Oct 3, 2016 3 instances 12:26:48 12:26:48 12:26:54 Nov Dec 29