Size

• 6-12 months (74-80 cm) (4)
• 1–2 years (80-86 cm) (6)
• 2–3 years (92-98 cm) (10)
• 3-4 years (98-104 cm) (14)
• 5–6 years (110-116 cm) (11)
• 6–7 years (116-122 cm) (13)
• 7–8 years (122-128 cm) (11)
• 8-9 years (134-140 cm) (11)
• 9–10 years (140-146 cm) (12)
• 10-11 years (146-152 cm) (3)
• 11-12 years (152-158 cm) (4)