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 75-43-4 63.6% 36.4% +4.0
Michigan 32-24-0 57.1% 42.9% +2.1
Nebraska 39-31-0 55.7% 44.3% +4.4
Michigan St 40-33-0 54.8% 45.2% +1.2
Minnesota 59-50-1 54.1% 45.9% +0.2
Penn State 30-27-1 52.6% 47.4% +1.1
Maryland 61-57-2 51.7% 48.3% +2.1
Purdue 55-56-3 49.5% 50.4% -0.3
Illinois 59-65-0 47.6% 52.4% +0.9
Wisconsin 22-25-2 46.8% 53.2% -0.1
Northwestern 51-61-2 45.5% 54.5% +0.5
Rutgers 52-67-0 43.7% 56.3% +0.1
Ohio State 11-15-2 42.3% 57.7% +0.7
Iowa 29-41-1 41.4% 58.6% -4.3