What is every Big Ten Conference team's record against the over/under line as an underdog since the 2004 season?

Definitions
Team Over Record Over % Under % Total +/-
Indiana 72-42-4 63.2% 36.8% +4.1
Nebraska 39-26-0 60.0% 40.0% +5.3
Michigan 31-23-0 57.4% 42.6% +2.3
Minnesota 57-47-1 54.8% 45.2% +0.5
Michigan St 36-31-0 53.7% 46.3% +1.2
Maryland 60-54-2 52.6% 47.4% +2.2
Penn State 29-27-0 51.8% 48.2% +0.9
Purdue 55-54-3 50.5% 49.5% -0.3
Illinois 55-61-0 47.4% 52.6% +0.9
Wisconsin 22-25-2 46.8% 53.2% -0.1
Northwestern 51-59-2 46.4% 53.6% +0.9
Iowa 29-39-1 42.6% 57.4% -4.4
Rutgers 47-64-0 42.3% 57.7% -0.4
Ohio State 10-15-1 40.0% 60.0% +0.5