This year has quite simply broken the way the CPI works. They try not to re-weight items in the CPI year by year. Motor fuel is still 2.9% of the index. Transp

This year has quite simply broken the way the CPI works. They try not to re-weight items in the CPI year by year. Motor fuel is still 2.9% of the index. Transportation, including air travel is still 5% of the index. Demand and price for these has crashed this year. They still keep the same weighting year in year out since the items in the CPI aren't meant to be changed and re-weighted every year. (See the Oct 2019 vs Oct 2020 column) https://www.bls.gov/news.release/cpi.t01.htm https://www.bls.gov/news.release/cpi.t01.htm