25 instances from 6 years 2020 - 1 instance Jan 19 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2019 - 2 instances Jan Feb 27 Mar Apr May Jun Jul Aug Sep Oct 26 Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 22 26 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 7 Feb Mar Apr May Jun 22 Jul Aug Sep Oct 3 Nov Dec 26 2016 - 14 instances Jan Feb 18 Mar Apr May Jun 20 21 2 Jun 21, 2016 2 instances 05:51:42 06:34:34 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 00:06:45 00:14:19 00:28:23 00:35:32 Oct 1 2 Oct 1, 2016 2 instances 07:07:42 07:09:10 3 2 Oct 3, 2016 2 instances 23:12:46 23:27:03 4 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 17