What is every Big Ten Conference team's record against the over/under line as an underdog in the 2013-2014 season?

Definitions
Team Over Record Over % Under % Total +/-
Iowa 4-1-0 80.0% 20.0% +7.5
Ohio St 3-1-0 75.0% 25.0% +2.0
Purdue 10-6-0 62.5% 37.5% +4.5
Michigan 5-3-1 62.5% 37.5% +1.6
Penn St 10-8-0 55.6% 44.4% +1.9
Minnesota 8-7-0 53.3% 46.7% +4.5
Michigan St 2-2-0 50.0% 50.0% -1.6
Wisconsin 3-3-0 50.0% 50.0% -1.1
Nebraska 9-9-0 50.0% 50.0% -0.9
Indiana 6-8-0 42.9% 57.1% -3.3
Illinois 6-13-0 31.6% 68.4% -6.3
Northwestern 7-16-0 30.4% 69.6% -5.5