11 instances from 4 years 2021 - 1 instance Jan Feb Mar 21 Apr May Jun Jul Aug Sep Oct Nov Dec 2020 - 1 instance Jan Feb Mar Apr May Jun Jul 24 Aug Sep Oct Nov Dec 2019 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct Nov Dec 2018 - 8 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2018 6 instances 09:51:52 10:02:09 10:02:11 10:36:28 10:48:00 21:43:30 22 2 Jun 22, 2018 2 instances 01:26:01 05:02:52 Jul Aug Sep Oct Nov Dec