Base de connaissances

Not what is wrong with the data that exists, but what does not exist at all. Naming the absence is the first step to recording it as an absence rather than a zero.

CFA franc zones, floating currencies and different base years in the same chart. What convention do you use, and what does it distort?

Government PDFs move, get renamed, and disappear. What has actually worked for you — archived copies, identifiers, something else?

Publication schedules slip quietly. Knowing which sources have gone dark is as useful as knowing which are current.

This library draws intervals rather than bare central values and marks projections explicitly. Does that read clearly to you, or does it just look like error bars nobody explains?

The interface is bilingual; most of the records are not. Beyond translation, what would have to be true for a francophone researcher to treat this as a primary source?

A wrong figure, a broken link, a mislabelled country, a document that does not match its record. Post it with the record identifier and what you expected. Corrections are treated as contributions, not complaints.