Fuel Economy- 2006 F250 Powerstroke

Hey guys,
Just curious what you guys are getting with your powerstrokes. I recently bought a 2006 F250 Powerstroke Crew Cab. The truck has an Edge programmer, 5" exhaust, and a cold air intake. Using it as a daily driver, I am seeing about 15-16 mpg avg on the fuel economy tune. I have been using the "drive" setting on the programmer for this tank to see how it affects my mileage. Is that good? Bad? Average? Just curious where I am at. I'm pretty happy with the truck so far. More power than I need and I don't have to worry that I can't pull something.

Cheers

I get 15.2 around town and about 17 on the highway. I have a silverline turbo back exhaust for only mod.