12 instances from 2 years 2018 - 8 instances Jan Feb Mar Apr May Jun 22 5 Jun 22, 2018 5 instances 02:56:12 03:05:01 03:47:04 06:04:55 20:59:27 23 3 Jun 23, 2018 3 instances 07:06:22 07:14:18 07:16:14 Jul Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun Jul Aug Sep Oct 2 3 Nov Dec 25 26