What is every Big Ten Conference team's record against the over/under line as an underdog since the 2003-2004 season?

Definitions
Team Over Record Over % Under % Total +/-
Ohio St 106-87-1 54.9% 45.1% +2.2
Michigan 127-118-7 51.8% 48.2% +0.1
Penn St 188-176-3 51.7% 48.4% +1.1
Nebraska 178-170-4 51.2% 48.9% +1.1
Rutgers 188-180-5 51.1% 48.9% +0.7
Purdue 95-98-0 49.2% 50.8% +1.4
Maryland 120-124-5 49.2% 50.8% +0.6
Iowa 137-142-4 49.1% 50.9% +0.7
Indiana 129-135-6 48.9% 51.1% -0.1
Michigan St 78-83-3 48.5% 51.6% -0.2
Minnesota 153-168-4 47.7% 52.3% -0.3
Northwestern 152-182-6 45.5% 54.5% -0.5
Wisconsin 82-101-2 44.8% 55.2% -0.5
Illinois 101-126-3 44.5% 55.5% -1.3