The canonical example are the wild changes to the CPI buckets: https://howmuch.net/articles/price-changes-in-usa-in-past-20-years https://howmuch.net/articles/

The canonical example are the wild changes to the CPI buckets: https://howmuch.net/articles/price-changes-in-usa-in-past-20-years https://howmuch.net/articles/price-changes-in-usa-in-past-20...