A new survey shows that children aged 1-6 in some Chinese cities are at least 2 cm taller than those born ten years ago.
The survey shows that boys aged 18 months, 3.5 years, 4 years, 4.5 years, 5 years and 5.5 years are each taller than those of ten years ago.
The survey says the average height of Chinese boys aged 4.5 is 110.2 cm, 3.1