What is every Big Ten Conference team's record against the over/under line as an underdog in the 2008 season?

Definitions
Team Over Record Over % Under % Total +/-
Penn St 1-0-0 100.0% 0.0% +17.0
Illinois 4-0-0 100.0% 0.0% +16.5
Minnesota 5-1-0 83.3% 16.7% +5.0
Michigan 5-1-0 83.3% 16.7% +11.6
Michigan St 3-1-0 75.0% 25.0% +6.1
Indiana 6-3-0 66.7% 33.3% +2.7
Iowa 2-2-0 50.0% 50.0% -3.8
Wisconsin 3-3-0 50.0% 50.0% +1.6
Purdue 2-5-1 28.6% 71.4% -10.9
Northwestern 2-5-0 28.6% 71.4% -3.6
Ohio St 0-3-0 0.0% 100.0% -12.8