20 instances from 4 years 2019 - 2 instances Jan Feb 18 Mar Apr May Jun Jul Aug Sep Oct Nov 21 Dec 2017 - 3 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 01:24:06 01:26:25 Jul Aug Sep Oct 2 Nov Dec 2016 - 13 instances Jan Feb 17 Mar Apr May Jun 20 6 Jun 20, 2016 6 instances 08:35:28 08:39:25 09:15:50 09:18:06 09:28:15 09:34:57 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 08:16:19 08:21:04 08:21:16 08:21:37 30 Oct 3 Nov Dec 2015 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 17 2 Dec 17, 2015 2 instances 16:48:28 16:57:36