What is every Big Ten Conference team's record against the over/under line as a home underdog since the 2009 season?

Definitions
Team Over Record Over % Under % Total +/-
Wisconsin 1-0-1 100.0% 0.0% +3.5
Michigan 8-2-0 80.0% 20.0% +10.2
Indiana 22-10-2 68.8% 31.2% +3.3
Nebraska 8-4-0 66.7% 33.3% +4.8
Ohio State 2-1-0 66.7% 33.3% +16.3
Purdue 25-15-1 62.5% 37.5% +4.6
Minnesota 17-14-0 54.8% 45.2% +1.5
Michigan St 6-5-0 54.5% 45.5% -2.2
Maryland 16-15-0 51.6% 48.4% +3.9
Penn State 6-6-0 50.0% 50.0% +1.2
Northwestern 13-14-1 48.1% 51.8% -1.6
Illinois 15-21-0 41.7% 58.3% -1.7
Rutgers 13-22-0 37.1% 62.9% -5.9
Iowa 4-8-0 33.3% 66.7% -8.3