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

Definitions
Team Over Record Over % Under % Total +/-
Nebraska 3-0-0 100.0% 0.0% +21.5
Penn St 4-1-0 80.0% 20.0% +1.2
Indiana 6-2-0 75.0% 25.0% +12.9
Wisconsin 3-1-0 75.0% 25.0% +11.0
Purdue 4-3-0 57.1% 42.9% -2.6
Illinois 4-3-0 57.1% 42.9% +1.2
Northwestern 3-3-0 50.0% 50.0% +6.5
Minnesota 4-4-1 50.0% 50.0% -1.6
Michigan 2-3-0 40.0% 60.0% -8.8
Iowa 1-4-0 20.0% 80.0% -6.4
Ohio St 0-2-0 0.0% 100.0% -12.5
Michigan St 0-3-0 0.0% 100.0% -13.2