It depends on your ads placement that how many visitors click them and obviously your keywords too so if they are relavant ads then people will click it more ...
My blog gets around 7-10 depends, and this is with ads on the bottom of the page right hand side in the sidebar. Get's me some good 4-5 dollars a day with around 8,000 impressions.
I'm between 5-10 on my blog as well, which only has one poorly placed adsense block with around 150-200 daily uniques... lol who knows how this is happening?