Do you know how many Catholics live in Uruguay?
If you don't, and want to know, then the World Christian Encyclopedia is the resource for you. The third edition is coming to a seminary library near you in 2020 (Edinburgh University Press). I volunteer time as one of several editorial assistants on this project. One of the editors, Todd M. Johnson, was my seminary advisor. Todd and I co-authored Our Global Families: Christians Embracing Common Identity in a Changing World (Baker Academic, 2015).