21 instances from 5 years 2020 - 3 instances Jan 19 Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov 13 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 2 Jul 20, 2019 2 instances 11:05:18 18:27:08 Aug Sep Oct Nov Dec 2018 - 4 instances Jan 6 Feb Mar Apr May Jun 21 23 24 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 7 Feb Mar Apr May Jun 22 23 Jul Aug Sep Oct 2 Nov Dec 25 2 Dec 25, 2017 2 instances 04:25:28 21:16:48 2016 - 6 instances Jan Feb Mar Apr May Jun Jul Aug Sep 30 2 Sep 30, 2016 2 instances 17:01:27 17:30:17 Oct 3 3 Oct 3, 2016 3 instances 16:15:56 16:33:35 17:28:27 Nov Dec 30