The average young adult today is around 8 or 9 cm, or about 5%, taller.
Below are average adult human heights by country or geographical region. The original studies "Variations in height throughout the day". . Paper prepared for The Fifth World Congress of Cliometrics, Venice International University, Venice.
Human height or stature is the distance from the bottom of the feet to the top of the head in a Exceptional height variation (around 20% deviation from average ) within . of genetic variants in at least 180 loci associated with adult human height. Shilluk and Dinka have been described as some of the tallest in the world.