Really does. There's absolutely no fucking way that my big weekly shop is even only 5% more than it was last year; it's near enough doubled since Covid. The 'shopping basket' that they use to measure these things is generally based the pricing history of a specific SKU, given to the ONS by a specific retailer,. So if they say 'own-brand ready salted crisps' are the same price as last year', that will pull down the overall grocery basket, even if every single other flavour and brand of crisps has gone up by 20%. They also don't account for shrinkflation, so if the bag goes from 22g to 20g - meaning you'd technically have to spend 10% more to get the same amount of crisps, they can report that the price has remained the same. Obviously they'll collect data on various crisps from various places, but it can be manipulated pretty easily.