8 instances from 3 years 2020 - 3 instances Jan 20 Feb Mar Apr May Jun 30 Jul Aug Sep Oct Nov 14 Dec 2018 - 4 instances Jan 9 Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:49:15 13:25:22 18:13:18 Jul Aug Sep Oct Nov Dec 2017 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 25