6 instances from 2 years 2018 - 1 instance Jan Feb Mar Apr May Jun 22 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 13:58:50 13:58:53 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 14:50:55 14:50:58 24 Nov Dec