"Pages from the UK" user data.

[glengara]

13.6% according to Hitwise, doesn't say how many used both though....

Hitwise Intelligence - Robin Goad - UK: How popular is Google's "pages from the UK" search option?

 

[Drang3d]

I wonder what the percentage would be for "pages from Ireland". Although it does depend on the search term, when its saturated with u.s./u.k. sites when your looking for something irish. A good example would be "self certification mortgages".