10 instances from 2 years 2018 - 8 instances Jan Feb Mar Apr May Jun 21 4 Jun 21, 2018 4 instances 15:13:32 15:42:10 15:54:13 15:57:18 22 4 Jun 22, 2018 4 instances 03:07:54 10:47:01 10:59:27 23:39:19 Jul Aug Sep Oct Nov Dec 2017 - 2 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 25 26