Thanks for the info so far.
But Im talking about 'relative' values:
think of it as the aspect ratio of an image. It is 4x3, but it can be 320x240 size in pixels, or 800x600 or 1024x768. I want to know if the 'aspect' ratio of human body changes from this age onward (except the head size).
Some of images I compared to show that it doesnt, some do.