Where is Esperanto spoken?
Everywhere, but not by many. Since one year, I have a Twitter account where I post only in Esperanto. I have 338 followers, here is the data. I hope it can give some kind of idea.
United States 21%
United Kingdom 7%
Thanks. Interesting. I know nothing about Twitter. Too old and lazy to start up with it, I guess.
Your figures are very interesting. The positions of Brazil and Russia, especially. Brazil because it is so high on the list, and Russia because I saw a bunch of SF books, mostly Russian, for sale online last year, translated into Esperanto. I don't know Esperanto, but I sure was tempted--probably would have bought them too, "for the future," except I didn't see any payment method they'd accept that I could use. Just as well, as I still haven't begun learning Esperanto. :)