What is every Big Ten Conference team's record against the over/under line as a home underdog in the 2012-2013 season?

Definitions
Team Over Record Over % Under % Total +/-
Wisconsin 1-0-0 100.0% 0.0% +5.0
Minnesota 1-0-0 100.0% 0.0% +11.0
Purdue 5-1-0 83.3% 16.7% +14.3
Penn St 4-3-0 57.1% 42.9% +4.1
Illinois 2-3-0 40.0% 60.0% +1.1
Northwestern 2-5-0 28.6% 71.4% -5.9
Iowa 1-3-0 25.0% 75.0% -8.4
Nebraska 2-9-0 18.2% 81.8% -10.0
Michigan St 0-1-0 0.0% 100.0% -5.5