12 months 7-12 months 1-3 years old 18 months 2 years old 4-5 years old 3 years old 6-7 years old 4 years old 8-9 years old Over 10 years old 5 years old 6 years old 7 years old 8 years old 9 years old 10 years old 12 months old 12 months old 12 months old 12 months old 12 months old 12 months old 12 months old 12 months old 12 months old 12 months old 12 months old