20 instances from 4 years 2020 - 1 instance Jan Feb Mar Apr May Jun Jul Aug 3 Sep Oct Nov Dec 2018 - 6 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 01:26:23 02:24:15 03:11:30 15:48:47 22 2 Jun 22, 2018 2 instances 00:40:28 16:22:08 Jul Aug Sep Oct Nov Dec 2017 - 9 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 01:23:39 01:30:22 22 3 Jun 22, 2017 3 instances 15:22:37 15:46:46 15:56:28 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 01:18:27 01:29:58 Nov Dec 25 2 Dec 25, 2017 2 instances 09:03:02 21:17:15 2016 - 4 instances Jan Feb Mar Apr May Jun 20 2 Jun 20, 2016 2 instances 08:34:52 08:35:08 30 2 Jun 30, 2016 2 instances 00:17:56 03:11:53 Jul Aug Sep Oct Nov Dec