Vernon’s sword-toting creature replied jovially, "For thirteen years and ten months, you’ve received a thousand pounds a month for the care of Lord Potter. That’s £166 000. Almost none of that £166 000 did you spend on the boy whose vault was paying you. You don’t own this house, Mrs Dursley’s parents did, until they died and Mrs Dursley’s sister Lily inherited the house; then Lily owned the house till she died, and toddler Harry inherited it. You two paid rent, considerably below market value, of two hundred pounds a month to Mrs Dursley’s parents and to Mrs Dursley’s sister Lily, until November 1981. Beginning November 1981, you’ve paid no rent. Which makes you £33 200 in arrears on your rent. For a grand total of £199 200."