17 instances from 5 years 2020 - 3 instances Jan 20 Feb Mar Apr May Jun 28 Jul 2 Aug Sep Oct Nov Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep 18 Oct 26 Nov Dec 2018 - 2 instances Jan 5 Feb Mar Apr May Jun Jul 16 Aug Sep Oct Nov Dec 2017 - 4 instances Jan 1 9 Feb Mar Apr May Jun 26 Jul Aug Sep Oct 10 Nov Dec 2016 - 6 instances Jan Feb Mar Apr May Jun Jul Aug Sep 20 4 Sep 20, 2016 4 instances 13:51:58 14:16:04 19:46:44 20:04:38 Oct 3 2 Oct 3, 2016 2 instances 11:47:47 12:23:56 Nov Dec