8 instances from 2 years 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 15:14:00 15:42:39 15:54:55 15:57:47 22 3 Jun 22, 2018 3 instances 03:08:05 10:47:28 10:59:54 Jul Aug Sep Oct Nov Dec