20 instances from 4 years 2020 - 4 instances Jan Feb Mar Apr May Jun 28 Jul 20 2 Jul 20, 2020 2 instances 07:59:07 07:59:59 24 Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 01:23:23 01:23:27 01:23:36 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 07:15:32 07:21:42 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 14:16:17 14:27:42 14:36:08 14:40:15 30 2 Sep 30, 2016 2 instances 20:43:42 20:46:38 Oct 3 3 Oct 3, 2016 3 instances 12:50:23 12:59:06 13:15:47 Nov Dec