8 instances from 2 years 2021 - 1 instance Jan Feb Mar 20 Apr May Jun Jul Aug Sep Oct Nov Dec 2018 - 7 instances Jan Feb Mar Apr May Jun 21 7 Jun 21, 2018 7 instances 06:46:03 06:46:32 06:51:44 13:40:25 14:08:30 14:26:15 20:38:58 Jul Aug Sep Oct Nov Dec