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 04:07:12 07:12:28 07:25:08 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 03:42:17 04:04:05 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 10:19:18 10:19:31 10:19:32 10:24:04 30 2 Sep 30, 2016 2 instances 18:15:34 18:20:01 Oct 3 3 Oct 3, 2016 3 instances 10:21:46 10:22:08 10:38:24 Nov Dec 29