13 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 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2018 6 instances 09:51:56 10:02:13 10:02:14 10:36:31 10:48:07 21:43:31 22 2 Jun 22, 2018 2 instances 01:25:27 05:02:27 Jul Aug Sep 25 2 Sep 25, 2018 2 instances 13:07:53 13:08:30 Oct Nov Dec