19 instances from 4 years 2020 - 2 instances Jan Feb Mar Apr May Jun 28 Jul 4 Aug Sep Oct Nov Dec 2018 - 4 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 06:04:54 06:06:13 06:06:25 06:08:11 Jul Aug Sep Oct Nov Dec 2017 - 3 instances Jan 6 Feb Mar Apr May Jun 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 10:40:12 10:44:37 10:44:40 10:45:22 30 2 Sep 30, 2016 2 instances 18:47:35 18:53:06 Oct 3 3 Oct 3, 2016 3 instances 10:50:32 10:50:41 10:50:41 Nov Dec 29