15 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 1 Aug Sep Oct Nov 14 Dec 2019 - 4 instances Jan Feb Mar Apr May Jun Jul 20 2 Jul 20, 2019 2 instances 13:01:27 17:26:22 Aug Sep 18 Oct 26 Nov Dec 2018 - 4 instances Jan 4 Feb Mar Apr May Jun 26 27 Jul 10 Aug Sep Oct Nov Dec 2017 - 3 instances Jan 8 Feb Mar Apr May Jun 23 Jul Aug Sep Oct 8 Nov Dec 2016 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 29