Interesting population statistics per Wikipedia and suggested server reallocation

[Lumenous]

You forgot Korea and China and many countries connecting to JP servers

so china + 1357
Korea South +50
North Korea +25

I may be wrong, but I don't think the game is available in any of those countries. China in particular has very strict laws with regard to what can be depicted in video games, to the point that some games get released months or even years late in China because so much content has to be remade to abide by their laws.