I have 5.6
Yes, i know, really low... But im healthy! I eat a lot! I just digest my food really quickly and stuff... Dunno exactly! But i eat more, and more fat food than most people my age!
I do a lot of sports:
Football (European style)
Tennis
Swimming
Hockey
etc...
EDIT:
Length: 1.78 meters.
Weight: 52 kg.
Age: 16.
THE NETHERLANDS