14 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:51:12 03:52:04 03:53:18 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 21:06:43 21:06:44 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 5 instances Jan Feb Mar Apr May Jun 20 5 Jun 20, 2016 5 instances 10:04:20 10:14:52 10:16:16 10:26:13 13:06:58 Jul Aug Sep Oct Nov Dec 2015 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16 18