FaRmLaNd on 12 May 2010
Its would be a foolish presumption to say that ioi just guesses. Yes there is extrapolation from a more limited number of sources but then again its a free service thats updated every week and has excellent analytical tools and a great database. When the site is way off the numbers will be adjusted, but you cannot expect to get perfect numbers from a free service such as this. As always, you should use the numbers a a guide, nothing more.
