13-14 years of age - 48.2 per cent; 10-12 years of age - 38 per cent; 7-9 years of age - 13 per cent; Under 7 years of age - 1.5 per cent.
13-14 ans: 48,2 % 10-12 ans: 38 % 7-9 ans: 13 %; Moins de 7 ans: 1,5 %.