Based on average mileage in our database for all model years of the Toyota Prius. How about you?
The average Toyota Prius owner spends half their driving time staring at the LCD in their car, praying for an extra .5 mpg. We cringe when we have to press the gas pedal further than a quarter inch.
This is a personal project by me, because I'm just as obsessed with my car's mileage as you are.