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

Definitions
Team Over Record Over % Under % Total +/-
Ohio St 8-2-0 80.0% 20.0% +12.0
Michigan 15-5-0 75.0% 25.0% +4.6
Indiana 39-29-0 57.4% 42.7% +1.3
Purdue 38-32-3 54.3% 45.7% +2.9
Nebraska 29-25-1 53.7% 46.3% +2.0
Minnesota 29-27-1 51.8% 48.2% +0.8
Maryland 34-32-0 51.5% 48.5% +2.4
Penn St 14-15-1 48.3% 51.7% +2.1
Northwestern 32-36-3 47.1% 52.9% -1.9
Michigan St 23-28-0 45.1% 54.9% -1.8
Rutgers 36-50-0 41.9% 58.1% -1.5
Illinois 32-45-4 41.6% 58.4% -0.9
Wisconsin 7-10-1 41.2% 58.8% -1.2
Iowa 17-26-0 39.5% 60.5% -3.2