The WikiProject Med has created a mirror of OurWorlInData and a extension to show the content in Wikipedia articles. We have discussed at Basque Wikipedia about this, and we would like to have it deployed in our wiki, so we can start to add interactive maps and graphs.
The discussion is here: https://eu.wikipedia.org/wiki/Topic:Wr0cgff9sat6mv3k. It was open for two weeks and no negative votes were added.
Thanks!