20 instances from 3 years 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 03:58:19 03:58:22 03:58:23 03:58:26 03:58:29 19:38:59 22 Jul Aug Sep Oct Nov Dec 2017 - 12 instances Jan Feb Mar Apr May Jun 21 6 Jun 21, 2017 6 instances 02:35:56 02:35:57 02:37:57 09:22:15 09:22:53 09:24:13 Jul Aug Sep Oct 2 2 Oct 2, 2017 2 instances 03:04:42 09:01:28 Nov 8 2 Nov 8, 2017 2 instances 21:28:35 21:28:37 Dec 25 2 Dec 25, 2017 2 instances 04:27:18 04:27:22