16 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:06:47 03:06:50 03:08:47 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 02:28:50 02:30:09 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 7 instances Jan Feb Mar Apr May Jun 20 21 Jul Aug Sep 19 30 Oct 3 2 Oct 3, 2016 2 instances 09:28:04 09:28:05 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16