Japan iTunes is rubbish!

I get pissed off with iTunes Japan store because the sales of songs are not many.
There are only 1 million songs now. It lacks of international songs.
iTunes Japan store has launched since this August. Maybe most of Japanese wating for this time. As I thought it showed record sales figure at first.
But now, I'm not satisfy!
Sony makes no attempt to give songs for iTunes! I think that's the problem.