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

Definitions
Team Over Record Over % Under % Total +/-
Penn State 1-0-0 100.0% 0.0% +13.5
Ohio State 1-0-0 100.0% 0.0% +14.0
Wisconsin 4-1-0 80.0% 20.0% +1.8
Illinois 4-1-0 80.0% 20.0% +6.7
Indiana 5-3-0 62.5% 37.5% +0.8
Minnesota 4-4-0 50.0% 50.0% +0.1
Northwestern 3-3-0 50.0% 50.0% +7.0
Michigan St 3-3-0 50.0% 50.0% +6.7
Purdue 1-2-0 33.3% 66.7% -5.7
Michigan 1-2-0 33.3% 66.7% -13.5
Iowa 1-4-0 20.0% 80.0% -7.2