In which of these countries are there more diaspora than citizens?

Robbo, The answer explanation reads 'over 4 million ', merely using the 4 million as the population of Lebanon.

There are actually 15 million in the diaspora. I am one of them! Question says 4 million but then notes 5-7 million in Brazil alone.

Excellent question; and thanks to this diaspora the world can now try their excellent cuisine!