Regional estimate v1
published 2025-08-04 · 2 values
Population-weighted extrapolation from a sampled subset to a whole region. Superseded after an error in the weighting denominator was found.
superseded by regional-estimate-v2
Registry
Method versions
A method version is never edited after publication. When it is wrong, a new version is published and the old one is marked superseded — it stays here, and the values it produced keep pointing at it.
Ratio derivation v1
published 2025-11-30 · 3 values
A value computed as a ratio of two other labelled values. The derived row inherits the weakest provenance of its inputs and may never be presented as measured.
current
Regional estimate v2
published 2026-01-19 · 5 values
Population-weighted extrapolation with a corrected denominator and a mandatory 90% interval. Values produced under v1 were not silently rewritten; they were re-published under this version with a recorded provenance change.
current
Direct meter read v2
published 2026-02-11 · 5 values
A value transcribed from a physical or digital meter at a stated timestamp, with the reading artefact retained. No inference of any kind is permitted under this method.
current
Third-party feed v3
published 2026-03-02 · 3 values
A value ingested from an external supplier. The supplier and retrieval date are recorded; the supplier's own method is not warranted by this system.
current