As a general rule the more speakers a language has the higher the chance of mostly dubbed content. High quality dubs are not cheap and it's easier to finance it when your target language has a 100 million speaker instead of just 5 million.

That's why Germany, France and Spain like to dubs, but not smaller countries like the Netherlands or Scandinavian countries. And medium sized countries like Poland often have really crappy dubs (sometimes one speaker for all characters).