Methodology
Definitions, formulas, source series, refresh cadence and known limits behind every figure Zonelor publishes.
Every published figure carries a named source, a provenance label, and a review date. Formulas are printed in full so any figure can be reproduced by hand.
Zonelor Data Desk maintains the source series and signs off on every revision. Index definitions for this site are published here as each dataset goes live.
Not advice — Zonelor is a data publisher. Figures are indicative benchmarks for comparison, not professional advice, and must be confirmed with a qualified professional before you rely on them. About Zonelor