18 instances from 3 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2018 6 instances 07:21:26 07:21:27 07:21:30 07:28:23 07:28:26 15:57:50 24 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 03:31:13 03:31:23 03:31:35 03:31:45 03:32:02 03:32:12 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 04:00:10 04:00:20 Nov Dec 25 2 Dec 25, 2017 2 instances 05:34:01 05:34:04