So I found this site online that you can select a number of faces and see the average looking Males and Females. Pretty cool right? It is, however, one of those tools that you will use once, and forget forever.. So, I found These (which i originally was looking for) pictures of the average faces of each respective country instead (click on them to make them larger):
Mens Faces, Average Look for each Country
Womens' Faces, Average Look for each Country
I dont know how Accurate this really is but if the average American is Overweight, I can tell you, either our 'weight limit' is out of wack or the white american in the picture doesn't resemble the truth (unless it's only college students participating, then I would understand).