8 instances from 2 years 2020 - 4 instances Jan Feb Mar Apr May Jun 28 Jul 4 Aug Sep Oct Nov 12 2 Nov 12, 2020 2 instances 22:12:11 22:16:36 Dec 2018 - 4 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 04:20:17 04:20:47 04:23:42 04:27:06 Jul Aug Sep Oct Nov Dec