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

Definitions
Team Over Record Over % Under % Total +/-
Michigan 5-1-0 83.3% 16.7% +9.7
Purdue 11-4-0 73.3% 26.7% +7.9
Indiana 2-1-0 66.7% 33.3% +2.2
Minnesota 5-3-0 62.5% 37.5% +2.6
Penn St 11-9-0 55.0% 45.0% +1.3
Northwestern 8-9-1 47.1% 52.9% -2.1
Iowa 6-8-0 42.9% 57.1% 0.0
Nebraska 10-14-0 41.7% 58.3% -4.9
Illinois 7-10-0 41.2% 58.8% -0.5
Ohio St 2-3-0 40.0% 60.0% -3.1
Michigan St 3-6-0 33.3% 66.7% -4.3
Wisconsin 3-6-0 33.3% 66.7% -7.1