22 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 29 Jul Aug Sep Oct Nov 14 Dec 2019 - 2 instances Jan Feb Mar Apr May Jun 22 Jul Aug Sep Oct 26 Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 29 Jul 1 12 Aug Sep Oct Nov Dec 2017 - 5 instances Jan 1 9 Feb Mar Apr May Jun 25 Jul Aug Sep Oct 7 Nov Dec 31 2016 - 9 instances Jan Feb Mar Apr May Jun 22 2 Jun 22, 2016 2 instances 03:08:37 10:29:15 Jul Aug Sep 21 4 Sep 21, 2016 4 instances 21:48:16 22:18:59 22:22:33 22:38:05 Oct 3 2 Oct 3, 2016 2 instances 06:59:21 07:41:26 5 Nov Dec