12 instances from 3 years 2020 - 1 instance Jan 20 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2018 - 6 instances Jan 9 10 Feb Mar Apr May Jun 21 28 Jul 1 2 Aug Sep Oct Nov Dec 2017 - 5 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:31:25 10:31:42 23 Jul Aug Sep Oct 4 Nov Dec 27