21 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 16 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun 22 Jul Aug Sep Oct 26 Nov Dec 2018 - 1 instance Jan 15 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 2 instances Jan 6 Feb Mar Apr May Jun Jul 3 Aug Sep Oct Nov Dec 2016 - 13 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2016 2 instances 09:42:13 19:08:07 22 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:39:33 15:14:09 20:10:20 20:28:45 Oct 1 2 Oct 1, 2016 2 instances 22:06:24 23:20:17 4 3 Oct 4, 2016 3 instances 16:45:10 17:13:47 19:51:49 Nov Dec 30