Number of page read

Hi all,

when we create an index our goal is to make the db engine read a smaller number of pages to execute our query. I am searching a counter that tells me how many pages sql server has read for a particular table (it would be perfect) or for a whole db.

I'd like to plot those data and say "before I created my index the db engine read 1.000.000 every hour, now it reads 500.000, so the index creation has been effective"