12 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:49:26 03:50:18 03:51:16 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 21:05:04 21:05:05 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 4 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 08:47:53 08:54:58 10:37:22 13:16:44 Jul Aug Sep Oct Nov Dec 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 18