15 instances from 5 years 2020 - 4 instances Jan 18 Feb Mar Apr May Jun 30 Jul Aug Sep Oct Nov 12 13 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul 20 Aug Sep Oct 26 Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 03:24:59 11:07:15 19:33:49 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 7 Feb Mar Apr May Jun 21 Jul Aug Sep Oct 4 Nov Dec 25 27 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 30