AFAIK, that's just an estimate anyway. (It's based on "we found this many hits in this lump of the web that we searched, and that lump is this much of the web,

AFAIK, that's just an estimate anyway. (It's based on "we found this many hits in this lump of the web that we searched, and that lump is this much of the web, so we estimate that there are that many actual hits in the whole web.")