20 instances from 4 years 2020 - 3 instances Jan 23 Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 14 Dec 2018 - 3 instances Jan 1 8 2 Jan 8, 2018 2 instances 04:01:20 08:54:44 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 7 Feb Mar Apr May Jun 26 Jul Aug Sep Oct 6 7 2 Oct 7, 2017 2 instances 00:09:46 01:05:38 Nov Dec 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 3 Sep 19, 2016 3 instances 15:16:24 15:54:30 16:43:18 Oct 1 2 Oct 1, 2016 2 instances 04:02:12 04:05:57 3 3 Oct 3, 2016 3 instances 20:08:19 20:23:30 21:19:14 Nov Dec 30