18 instances from 3 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2018 - 9 instances Jan 2 2 Jan 2, 2018 2 instances 10:10:27 10:10:30 Feb Mar Apr May Jun 21 6 Jun 21, 2018 6 instances 04:46:57 04:46:58 04:47:00 04:49:13 04:49:16 19:58:06 23 Jul Aug Sep Oct Nov Dec 2017 - 8 instances Jan Feb Mar Apr May Jun 21 5 Jun 21, 2017 5 instances 11:02:42 11:12:16 11:23:56 11:52:04 22:35:46 Jul Aug 28 Sep Oct 9 2 Oct 9, 2017 2 instances 12:11:52 12:18:14 Nov Dec