19 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:29:19 03:29:53 03:30:48 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 20:20:58 20:23:48 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 11 instances Jan Feb Mar Apr May Jun 20 3 Jun 20, 2016 3 instances 09:11:16 11:24:58 13:20:20 Jul Aug Sep 19 3 Sep 19, 2016 3 instances 17:14:48 17:18:27 17:21:05 Oct 1 3 3 Oct 3, 2016 3 instances 17:21:42 17:26:32 17:27:05 Nov Dec 30 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 17