21 instances from 5 years 2020 - 2 instances Jan 18 Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov Dec 2019 - 1 instance Jan Feb Mar 5 Apr May Jun Jul Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:07:05 07:12:22 07:25:02 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 03:42:11 04:03:59 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 10:19:12 10:19:25 10:19:26 10:23:57 30 2 Sep 30, 2016 2 instances 18:15:28 18:19:54 Oct 3 3 Oct 3, 2016 3 instances 10:21:40 10:22:02 10:38:18 Nov Dec 29