12 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:39:09 03:39:54 03:40:51 Jul Aug Sep Oct Nov Dec 2017 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct 2 Nov Dec 25 2016 - 6 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 08:35:32 08:42:33 08:44:35 08:57:43 Jul Aug Sep 19 Oct 3 Nov Dec 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 17