20 instances from 7 years 2023 - 1 instance Jan Feb Mar Apr May 17 Jun Jul Aug Sep Oct Nov Dec 2022 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep 30 Oct Nov Dec 2020 - 1 instance Jan 23 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2019 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct 12 26 Nov Dec 2017 - 11 instances Jan Feb Mar Apr May Jun 21 Jul Aug Sep 13 3 Sep 13, 2017 3 instances 14:12:49 14:42:41 15:20:08 14 4 Sep 14, 2017 4 instances 16:08:06 16:12:27 16:21:18 16:44:40 25 Oct Nov 8 2 Nov 8, 2017 2 instances 09:02:10 11:21:44 Dec 2016 - 3 instances Jan Feb Mar Apr May Jun Jul Aug Sep 20 30 Oct Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16