I did mean globally. You can see that from stats that other people publish.

I suspect that the USA is one of the biggest, but I've not attempted to do stats for that. Just finding all the people would be hard, but people might want to work on individual states for a start.

I've run a query based on some simple criteria that shows Venezuela, Nigeria, Indonesia, Philippines, Germany and Cuba have hundreds of people active. In the UK we tend to be spread out.