20 instances from 5 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 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 22 7 Jun 22, 2018 7 instances 01:06:58 01:07:01 01:22:41 08:43:56 08:43:59 08:56:02 08:56:05 Jul Aug Sep Oct Nov Dec 2017 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 26 2 Dec 26, 2017 2 instances 00:01:22 00:01:25 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 20 4 Sep 20, 2016 4 instances 02:18:10 02:23:45 02:23:46 02:23:46 Oct 1 2 Oct 1, 2016 2 instances 18:43:23 18:49:42 4 3 Oct 4, 2016 3 instances 17:12:51 17:16:37 17:30:12 Nov Dec