While we can't cover specifics, please take a look at our Help Center article for more info on how the views are counted: http://yt.be/help/Jgao . Hope this helps.
So mathematically speaking 2 views full way wouyld be 10-ish minutes watch time and 5 views full way is 30-ish minutes if the video is 9 min long. The average of 2 - 30 minute views is 15 which is the adv view duraction currently displayed. 30 > 9... I think your studio glitched