Ask HN: Where Are HackerNews Readers Based?

I think I've read a while ago that HN hit 90'000 uniques a day (is that still acurate?) but where do these people come from? Is there some sort of reliable public knowledge about HN's popularity based on regions? I can tell that in Berlin for example people are reading HN, but I'm guessing that the HN US is far ahead in popularity. What about Israel, Eastern Europe, the UK, Australia, maybe even China?