Increase of 3.9% is biggest in six years
                                
                                
                                    (Newser) -
                                    The average annual cost of attending a private four-year college increased nearly 4% to $32,307 this school year, the biggest increase since 2001, the College Board said today. Tuition at four-year public schools rose 3.8 percent to $13,589, the report said. The figures, adjusted for inflation, do...