'Population growth' – some interesting facts about chess

Before you read this article try to guess: which countries in the world have the largest number of international chess players, i.e. people with a FIDE rating? Which countries are growing fastest? Which have the most GMs, which the strongest? How many GMs, IMs, FMs are there world-wide? Here are some very illuminating statistics collected by Boris Schipkov for Chess Siberia.