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 6 Jun 21, 2018 6 instances 07:13:42 07:13:43 07:13:45 07:20:14 07:20:18 20:50:05 22 Jul Aug Sep Oct Nov Dec