I always use this query to count how many pages does Google have in the index http://www.google.nl/search?q=a http://www.google.nl/search?q=a It's not the sam

I always use this query to count how many pages does Google have in the index http://www.google.nl/search?q=a http://www.google.nl/search?q=a It's not the same thing (some studies estimate nonindexed to indexed pages as 500:1) but it says ~27.5B pages.