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 07:21:14 07:21:16 07:21:17 07:28:09 07:28:13 15:57:14 24 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 03:30:47 03:30:57 03:31:09 03:31:19 03:31:35 03:31:45 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 03:59:28 03:59:38 Nov Dec 25 2 Dec 25, 2017 2 instances 05:33:47 05:33:51