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

Definitions
Team Over Record Over % Under % Total +/-
Indiana 42-24-0 63.6% 36.4% +4.2
Wisconsin 12-7-0 63.2% 36.8% +3.3
Nebraska 24-19-0 55.8% 44.2% +5.2
Illinois 32-28-2 53.3% 46.7% +3.1
Penn St 13-13-0 50.0% 50.0% +0.1
Maryland 32-33-1 49.2% 50.8% +0.7
Michigan 14-15-0 48.3% 51.7% -0.2
Minnesota 28-31-2 47.5% 52.5% -1.7
Purdue 27-32-2 45.8% 54.2% -1.5
Northwestern 25-32-2 43.9% 56.1% +0.5
Rutgers 27-38-0 41.5% 58.5% +1.2
Michigan St 18-26-0 40.9% 59.1% -1.6
Ohio St 4-6-0 40.0% 60.0% +0.5
Iowa 15-27-0 35.7% 64.3% -4.7