A 14-year-old girl's growth rate of 4 cm per year is regarded as typical for her age. During puberty, girls between the ages of 12 and 15 typically grow 3–7 cm annually. Plotting her height on the growth chart—with her height on the y-axis and her age on the x-axis—will confirm. The normal percentile range, which is typically the fifth to the 95th percentile, should contain the plotted point. With a growth rate of 4 cm per year, she is probably following her typical growth curve and is growing steadily.