3-6 Months (68 cm)

6-9 Months (74 cm)

9-12 Months (80 cm)

12-18 Months (86 cm)

18-24 Months (92cm)

2/3 Years (98 cm)

3/4 Years (104 cm)

4/5 Years (110 cm)

5/6 Years (116cm)