PISA 2025: a neutral read -- dataset

Released by Bill McCallum under the Creative Commons Attribution 4.0
International License (CC BY 4.0): https://creativecommons.org/licenses/by/4.0/

Suggested credit: "PISA 2025: a neutral read" (mathematicalmusings.org/pisa-2025), CC BY 4.0.

The PISA figures are derived from OECD (2026), PISA 2025 Results (Volume I),
https://doi.org/10.1787/73451bc5-en, and earlier PISA volumes (sources listed in
data_dictionary.md). They remain subject to the OECD's terms of use; credit the
OECD when reusing them. Figures from national and other international assessments
in us_series.csv remain subject to their sources' terms.
