Methodology
Every service identifies its source, reference period, unit and calculation type. Modelled counters distribute a published annual or daily value over time; they do not claim that real events occur evenly.
Data status
Moving counters are educational models unless the page explicitly identifies direct catalogue data. Dates and source periods are shown on each page.
Last reviewed: 2 October 2026
Source and correction policy
Primary official sources are preferred. Every moving value is labelled as direct, periodic, interpolated, modelled or forecast. New releases are reviewed before values, methods and sitemap dates change. Dated local snapshots are used when an external API is temporarily unavailable.