Vehicle registrations and fleet by wilaya — Algeria

Three different natures of measurement in one file, kept apart by the mesure column and never to be added together:

• registrations (flow) — vehicles registered or re-registered during the period, a few thousand per wilaya;
• vehicle fleet (stock) — all vehicles in circulation, an order of magnitude larger.

Adding a stock to a flow means nothing; comparing them means nothing either. The nature was read from each document's title, never inferred from its filename — nothing in Wil_an_2010.pdf versus Wil_S1_2010.pdf says which is which.

Two scopes in perimetre: all vehicles, or new vehicles only — a subset of the flow.

Two breakdowns in ventilation: by vehicle type (passenger car, truck, van, coach, road tractor, farm tractor) or by year of first registration, which measures the age of the fleet.

Columns are identified by rank and by their raw heading, both kept. The headings are split across two lines in the source ("Autocar" above, "Autobus" below); they were reassembled, but the rank stays authoritative.

Verification: the 48 wilayas must all be present, and their sum must equal the national total published in the same table. These annexes count only headcounts — never rates — so the sum is always the right check. Five annexes failed it and are not in this file.

A note on spelling. The source documents contain three consistent typos — "Arrerridj" with a double R, "Tissemesilt" with an extra E, "Contantine" without an S. They were recognised and mapped to the correct wilaya, but the wilaya column keeps the label as printed in the document, so any figure can be traced back.