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Notes

Notes.

What a dataset shows, what nobody publishes, and how the collection works. Every note is about the instruments and the record, never about what a figure means for anyone.

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  • The annual revision does not land on the same month
    data note · 2026-08-15
    Two US statistical agencies benchmark comparable monthly series on two different calendars. One has drifted across eight months of the year in ten years; the other has not moved. Neither publishes the dates.