How many human races are there in the world?

Its a silly question. Such questions has been asked before. Our police has been hard at work producing such momumental tasks of classifying people. They need that for crime reporting.
Check you the list to see you have missed out any.
http://tinyurl.com/y4mat2
Update: Oops. The correct site
http://tinyurl.com/y7b3yd
47 answers 47