8 instances from 4 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:40:37 03:41:21 03:42:19 Jul Aug Sep Oct Nov Dec 2017 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct 2 Nov Dec 2016 - 3 instances Jan Feb Mar Apr May Jun 20 2 Jun 20, 2016 2 instances 09:41:02 09:48:36 Jul Aug Sep Oct 3 Nov Dec 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 18