England and the US are 0.08, which seems to have influenced much of the world. No one really has any limit higher than 0.08. Most of Western Europe (EU15 ish) is 0.05.

What's probably an equally big risk is distracted driving and tired driving, but tired driving is very hard to quantify. If we didn't require cars so much, it wouldn't really matter because you could walk or ride a bike home (I have done this many times when drunk or high, without any problem). As an American, I feel like it's easier to phase out cars than it is to stop drunk driving.