Among them, 31 percent of 12 - and 13 - year - olds and 25 percent of 14 - and 15 - year - olds want to lose weight, up from 26 percent and 21 percent respectively.
وهاتان النسبتان كانتا في السابق ٢٦ في المئة و ٢١ في المئة .‏