Seeing as I have had up to 200% add my site as a favourite :) I don't think they are very accurate! They do however appear to reflect popularity - so I would take it that a high score is good, a low score perhaps shows you need better content to attract your visitors back.

__________________
Trish

www.limebrook.com
for horse lovers and riders everywhere
www.webmasterproductions.co.uk
advice for novice website designers
www.mountainwalk.co.uk
serious walks for novice walkers
www.mybeardeddragons.co.uk
for novice bearded dragon owners
www.tucsonforbeginners.com
information for a short break in Tucson
www.pets4kids.info
advice if you're thnking of a pet for the family