22 instances from 6 years 2021 - 1 instance Jan Feb Mar Apr May Jun 27 Jul Aug Sep Oct Nov Dec 2020 - 1 instance Jan Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:08:43 04:08:46 04:09:06 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:43:43 09:47:46 Jul Aug Sep Oct Nov Dec 25 2016 - 12 instances Jan Feb Mar Apr May Jun 20 4 Jun 20, 2016 4 instances 12:25:08 12:35:28 13:20:10 13:22:54 Jul Aug Sep 19 4 Sep 19, 2016 4 instances 16:15:26 16:30:13 16:35:56 16:38:53 30 Oct 3 2 Oct 3, 2016 2 instances 14:57:53 15:15:25 Nov Dec 29 2015 - 1 instance Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 16