Maybe a number that tells awstats what type of site you have so it can display more accurate stats of actual users.
0 - default action, all hits are counted as users except for known bots and error codes
1 - recognize real users by page hit and at least one jpg or gif file accessed
2 - recognize real users by 2 page hits and at least one jpg or gif file accessed
(note that it would be easy for any webmaster to add a transparent or small gif file to any page so that this feature would work)
There may be more types, I would suggest going to a forum and seeing what people may suggest before writing code for this one.