searches inside "speech marks"

what percentage of searches are done like this?

[lethal0r]

does anyone know how many searches are done in this way?

for any search enginge really, if possible with a source, if not then hearsay will do :)

thanks

Tom

[whoisgregg]

I think that only advanced searchers do this intentionally. Novice users would include quote marks around a phrase if that's how they think it is supposed to be written. (Not realizing it has special meaning for a search engine.)

On the strength of my intuition alone, I'd say it represents a small minority of searches (less than 10-15%).