19 instances from 4 years 2020 - 1 instance Jan Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 02:28:40 02:28:41 02:28:51 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 07:59:44 08:05:47 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 14:50:53 15:02:25 15:10:31 15:14:23 30 2 Sep 30, 2016 2 instances 21:18:14 21:20:53 Oct 3 3 Oct 3, 2016 3 instances 13:24:42 13:34:31 13:51:34 Nov Dec 29