Again, I can speak to how we do it. Ours is a very stable, rigorous approach over time. We survey tens of thousands of households and find out what they are spending their income on in a typical month, down to a very small differential between what they take in and what they spend, and then that forms the basis, if you like, of the weight within the CPI. Then we measure the change in that expenditure over time to come at the index—
On January 17th, 2022. See this statement in context.