Is this gas mileage normal for someone with a lead foot?

Hey everyone,

I got my new Cooper S a few weeks ago, and am still breaking it in. I have a lead foot, and have been getting those revs up to about 4k - 4500 after the engines warmed up. The onboard computer says that my MPG is 17.6MPG. I'm wondering if this is normal for an engine that is still breaking in, and someone with a lead foot like me?

So far, I've only driven in Mid mode as well.

Thanks!