19 instances from 4 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 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 16:56:48 16:56:51 17:08:02 17:08:06 17:09:26 17:09:29 22 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 14:32:03 14:32:14 15:06:41 15:06:51 15:18:30 15:18:40 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 15:08:06 15:08:16 Nov Dec 25 2 Dec 25, 2017 2 instances 19:10:02 19:10:06