It's well known enough that the times did an infographic on it, which I learned about from one of Tufte's books: http://www.edwardtufte.com/bboard/q-and-a-fetc

It's well known enough that the times did an infographic on it, which I learned about from one of Tufte's books: http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0002w4 http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0...