Wow. I complain about paying $715 per year for two vehicles - my 06 Canyon and my wife's 10 Focus. Full coverage on both.
Summer 2014 was not as warm as previous summers, but the addition of the vacuum gauge helped increase summer mileage to 38.2 MPG. Winter 2014-2015 was colder than normal, so average mileage dropped to 30.0 MPG.