You are correct, per according to Consumer Price Indices: a brief guide by the Office for National Statistics (directly indexed pdf, so google the name to find)

You are correct, per according to Consumer Price Indices: a brief guide by the Office for National Statistics (directly indexed pdf, so google the name to find), here are some selected examples of UK CPI factors and their weights. Class: Weight Food: 93 Alcoholic beverages: 20 Clothing: 59 Actual rentals for housing: 62 Electricity, gas and other fuels: 48 Purchase of vehicles: 38 Other recreational items, gardens and pets: 32 Education: 21 Restaurants and cafes: 88 These weights feel intuitively off to me, but I imagine costs like rent and education look low because only a subset of the population is paying for them, even if they are huge cost to members that cohort.