8 instances from 2 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:31:30 11:35:11 20:00:38 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 08:37:10 15:28:35 Jul Aug Sep Oct 2 Nov Dec 25 26