The closest pre-pubeal increase in height each year is
Length at bih - 50cms At the end of 1st year-75 cms Increase in length is 25cm/yr -1st year of bih At the end of 4yrs - 100cm. From there on till 12 yrs ( i.e, pre pubeal age) increase in height is 6cm per year. There is marked acceleration in height during pubey. Ref- Ghai , Chapter 2
1-2cm
3-4cm
5-7cm
8-10cm
Growth and development