12 instances from 4 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2018 - 4 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 01:51:00 01:51:06 01:51:21 20:01:38 Jul Aug Sep Oct Nov Dec 2017 - 6 instances Jan 6 Feb Mar Apr May Jun 21 3 Jun 21, 2017 3 instances 01:29:02 01:30:14 01:30:44 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 4 Dec