9 instances from 2 years 2018 - 5 instances Jan 6 8 Feb Mar Apr May Jun 22 3 Jun 22, 2018 3 instances 01:13:09 04:14:32 20:36:43 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun 22 23 Jul Aug Sep Oct 5 Nov Dec 25