Mileage at/above Toyota/EPA claim for v

Have '13 v Two, purchased new 5/28/13, currently with 3290 miles and 11 fill-ups. Total overall mpg is 45.35 (calculated on spreadsheet; dash computer mileage seems about 2-4% higher depending upon variety of conditions). Estimate about 40% AC driving. That includes town driving in/around Spokane, WA and about 1200 miles on trips with about 800 miles on interstate (mostly hold to 65mph), rest on 2 lane hilly & mountainous roads, much with 3 passengers and luggage + gear (at or near 55mph). Force EV mode around town when possible/practical.