14 instances from 4 years 2021 - 1 instance Jan Feb Mar Apr May Jun 26 Jul Aug Sep Oct Nov Dec 2020 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 13 Dec 2017 - 1 instance Jan 7 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 - 11 instances Jan Feb Mar Apr May Jun 27 Jul Aug Sep 20 4 Sep 20, 2016 4 instances 14:49:16 15:23:50 20:20:15 20:37:14 Oct 1 2 Oct 1, 2016 2 instances 21:21:52 22:38:09 4 3 Oct 4, 2016 3 instances 15:56:11 16:30:54 19:10:46 Nov Dec 30