"Figure 10: Expenditure by children by age group and sex","" "UK, financial year ending 2015 to financial year ending 2017","" "","" "Notes","1. Children aged 7 to 15 years record spending over two weeks in a youth diary." "Unit","Average weekly spend" "","" "Age","Boys"," Girls" "7 to 9 years of age","8.50","7.50" "10 to 12 years of age","10.60","11.40" "13 to 15 years of age","17.30","20.20"