8 instances from 2 years 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 01:43:23 01:43:37 01:43:59 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 04:06:27 04:06:34 Jul Aug Sep Oct Nov 2 8 Dec 25