Counting the number of peer reviews in the CV
I have served on several search committees lately for faculty members, and, honestly, I haven't seen one CV structure the peer review section in this fashion.

In my personal opinion, doing so looks like CV padding. We all know that the reviewing process can have multiple read throughs and comments, so I do not think it is necessary to include the number of times you have done the process for each individual manuscript.

Just my two cents.