On http://wikidata-test-repo.wikimedia.de/wiki/ I saw mostly pages regarding interwiki's. Are there also examples about how the data for the population in certain area's is added/represented?

A central project for (also) such data would be very welcome, so we can easily update this information. (This data is connected to identifiers by individual area.)

I hope the project is aiming to make this easier too.

Greetings - Romaine (nl-wiki, e.o.)