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 04:47:12 04:47:14 04:47:15 04:49:29 04:49:33 19:58:11 23 Jul Aug Sep Oct Nov Dec 2017 - 10 instances Jan Feb Mar Apr May Jun 21 5 Jun 21, 2017 5 instances 11:03:09 11:12:44 11:24:24 11:52:11 22:35:52 Jul Aug 28 Sep Oct 5 2 Oct 5, 2017 2 instances 10:01:50 10:05:31 Nov Dec 28 2 Dec 28, 2017 2 instances 21:27:08 21:27:11