What is every Big Ten Conference team's record against the over/under line as a home underdog since the 2014-2015 season?

Definitions
Team Over Record Over % Under % Total +/-
Penn St 26-13-0 66.7% 33.3% +8.0
Michigan 10-7-0 58.8% 41.2% +3.1
Ohio St 9-8-0 52.9% 47.1% +3.6
Minnesota 26-24-1 52.0% 48.0% -0.1
Iowa 9-9-0 50.0% 50.0% +1.9
Illinois 12-12-0 50.0% 50.0% +0.3
Nebraska 29-30-1 49.2% 50.9% +0.4
Maryland 9-11-1 45.0% 55.0% +2.5
Northwestern 21-26-1 44.7% 55.3% +0.8
Michigan St 4-5-0 44.4% 55.6% +3.4
Rutgers 25-32-3 43.9% 56.1% -2.1
Wisconsin 7-12-1 36.8% 63.2% +0.1
Indiana 9-17-0 34.6% 65.4% -6.2
Purdue 1-3-0 25.0% 75.0% -13.0