What is every Big Ten Conference team's record against the over/under line as a home underdog since the 2012 season?

Definitions
Team Over Record Over % Under % Total +/-
Michigan 7-0-0 100.0% 0.0% +13.1
Ohio St 1-0-0 100.0% 0.0% +48.0
Indiana 24-11-0 68.6% 31.4% +2.7
Purdue 25-14-2 64.1% 35.9% +6.5
Maryland 19-11-0 63.3% 36.7% +5.7
Minnesota 16-13-0 55.2% 44.8% +2.1
Penn St 6-5-1 54.6% 45.5% +1.0
Nebraska 11-10-1 52.4% 47.6% +1.0
Michigan St 11-10-0 52.4% 47.6% -2.6
Rutgers 20-20-0 50.0% 50.0% -1.8
Wisconsin 1-1-0 50.0% 50.0% -3.8
Northwestern 14-16-1 46.7% 53.3% -2.4
Illinois 15-23-2 39.5% 60.5% -2.4
Iowa 3-9-0 25.0% 75.0% -8.1