19 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan 20 Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov 13 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun 22 Jul Aug Sep Oct 26 Nov Dec 2018 - 2 instances Jan 8 Feb Mar Apr May Jun Jul 10 Aug Sep Oct Nov Dec 2017 - 4 instances Jan 7 Feb Mar Apr May Jun 23 Jul Aug Sep Oct Nov 20 2 Nov 20, 2017 2 instances 20:05:08 21:25:11 Dec 2016 - 7 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 2 Sep 19, 2016 2 instances 15:30:10 16:13:47 Oct 1 4 3 Oct 4, 2016 3 instances 15:44:53 16:17:52 18:59:23 Nov Dec 30