21 instances from 4 years 2020 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 18 Dec 2018 - 2 instances Jan 1 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 8 instances Jan 1 9 19 2 Jan 19, 2017 2 instances 10:27:20 16:21:25 Feb Mar Apr May Jun 29 Jul Aug Sep Oct 6 7 2 Oct 7, 2017 2 instances 00:07:37 00:54:44 Nov Dec 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 13:23:27 13:33:20 13:41:45 13:43:28 Oct 1 2 Oct 1, 2016 2 instances 04:01:53 04:05:38 3 3 Oct 3, 2016 3 instances 20:08:01 20:23:11 21:18:55 Nov Dec