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Samples

bls-ppi-construction-materials.csv

A live pull from the US Bureau of Labor Statistics public API, kept in the repository so the pipeline can be inspected without a network connection. 220 monthly observations across 5 series, covering 2023 through the most recent published month at the time of the pull.

How it was generated (exact command):

python3 scripts/fetch_bls_ppi.py \
    --series WPU1017,WPU0811,WPU1321,WPU0721,WPU1311 \
    --start 2023 --end 2026 \
    --out samples/bls-ppi-construction-materials.csv

Columns: series_id, year, period, period_name, value, source_url, licence, fetched_on.

What is verified: the series IDs returned data from the official API on the fetched_on date, and the values are as published.

What is deliberately not claimed: the titles of these series. The public API does not return series catalog data without a registered key, so this repository does not invent labels. Confirm each ID at https://data.bls.gov/timeseries/<SERIES_ID> before using or republishing it.

Refreshing: re-run the command above. The BLS API is the sanctioned programmatic route; its download.bls.gov flat files deny automated retrieval, and this repository does not scrape them.