Covenant Hespital is considering the purchase of a new ambulance. The decision rests partly on the anticipated mileage to be driven next year. The miles driven during the past $5$ years are shown below. Using the na$$ve forecasting approach, what is the anticipated mileage for next year $($year $6)?$

$\backslash$table$[[$Year$,$Mileage$],[1,3,000],[2,4,000],[3,4,500],[4($Last year$),3,800],[5($This year$),3,700],[6($Next year$),\backslash$table$[[$Data not yet$],[$available$]]]]$