highway driving mileage in the scion xb - take 2

Mileage on odometer: 
60,380.00
Miles driven: 
322.4
Fuel added: 
9.511
Fuel type: 
85
Cost: 
34.23
Calculated Mileage: 
33.8976

Mileage for this trip:

33.9 miles per gallon.