Personally I rarely browse at 100% zoom. I magnify each page until I only have ~20px of margin and no whitespace. Given there are tens of millions of people on

Personally I rarely browse at 100% zoom. I magnify each page until I only have ~20px of margin and no whitespace. Given there are tens of millions of people on the Internet, even if a small amount like 0,01% did it, it would already be "many people". I would however appreciate some analytics data on it to have a better idea.