19 instances from 4 years 2020 - 4 instances Jan 18 Feb Mar Apr May Jun 30 Jul Aug Sep Oct Nov 12 13 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct 26 Nov Dec 2018 - 6 instances Jan 7 2 Jan 7, 2018 2 instances 04:21:48 04:30:28 8 Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:23:14 11:05:50 19:32:23 Jul Aug Sep Oct Nov Dec 2017 - 7 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 08:17:57 10:31:17 22 23 Jul Aug Sep Oct 2 Nov Dec 25 2 Dec 25, 2017 2 instances 03:00:08 20:19:49