What is every Big Ten Conference team's record against the over/under line as an underdog since the 2007 season?

Definitions
Team Over Record Over % Under % Total +/-
Indiana 78-46-2 62.9% 37.1% +3.0
Michigan 31-22-0 58.5% 41.5% +2.0
Nebraska 42-36-1 53.9% 46.2% +3.4
Wisconsin 22-19-1 53.7% 46.3% +1.0
Purdue 61-56-6 52.1% 47.9% +1.1
Minnesota 57-53-2 51.8% 48.2% -0.3
Penn St 27-26-1 50.9% 49.1% +1.9
Michigan St 41-41-0 50.0% 50.0% -0.5
Maryland 60-60-1 50.0% 50.0% +1.9
Ohio St 12-13-0 48.0% 52.0% +2.4
Northwestern 53-60-3 46.9% 53.1% -0.2
Illinois 54-62-4 46.6% 53.5% +0.7
Rutgers 51-68-0 42.9% 57.1% -0.6
Iowa 27-47-0 36.5% 63.5% -4.6