What is every Big Ten Conference team's record against the over/under line as a road underdog since the 2013 season?

Definitions
Team Over Record Over % Under % Total +/-
Ohio St 2-0-0 100.0% 0.0% +19.0
Michigan 9-6-0 60.0% 40.0% +1.6
Indiana 22-17-0 56.4% 43.6% +3.1
Nebraska 16-16-0 50.0% 50.0% +2.0
Illinois 21-23-2 47.7% 52.3% +1.6
Maryland 18-20-0 47.4% 52.6% -0.1
Penn St 8-9-0 47.1% 52.9% +1.9
Minnesota 16-19-1 45.7% 54.3% -1.7
Wisconsin 4-5-0 44.4% 55.6% +0.7
Iowa 11-14-0 44.0% 56.0% -3.3
Purdue 16-22-1 42.1% 57.9% -2.5
Northwestern 15-21-2 41.7% 58.3% -2.0
Michigan St 12-18-0 40.0% 60.0% -1.8
Rutgers 17-30-0 36.2% 63.8% -0.1