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You can do this across the whole index if you want already, and many sources do report annual changes only: https://fred.stlouisfed.org/series/FPCPITOTLZGUSA ht
by asperous 4y ago
You can do this across the whole index if you want already, and many sources do report annual changes only: https://fred.stlouisfed.org/series/FPCPITOTLZGUSA https://fred.stlouisfed.org/series/FPCPITOTLZGUSA
As for why a moving average isn't used for this one price, if they did it that way prices would be 12 months old and wouldn't reflect the most up-to-date economic conditions.