[xwiki-users] Exclude Admin from statistics

Hello friends, Is there a modification we could make to the most active contributor so that Admin is excluded from the results. The Admin does make a lot of changes & creates quite a few pages which are XWiki internal pages/test pages. These pages are never seen by the general user. Also, we would like to recognize those general users who contribute the most to Wiki. However, Admin & other power users show up at the top of the most active contributors list. The number of pages attributed to Admin are way too high (since XWiki default xar file that we install during fresh installation has almost all the pages attributed to Admin). This kind of gives skewed results. I looked through the api so that I could find a method call which would help me do this. I am unable to find anything that came close to these requirements. Any help will be greatly appreciated.