What is every Big Ten Conference team's record against the over/under line as an underdog in the 2021-2022 season?

Definitions
Team Over Record Over % Under % Total +/-
Purdue 1-0-0 100.0% 0.0% +37.0
Illinois 3-1-0 75.0% 25.0% +4.4
Michigan 7-3-0 70.0% 30.0% +1.3
Minnesota 13-6-2 68.4% 31.6% +1.8
Nebraska 15-9-0 62.5% 37.5% +6.6
Maryland 11-7-0 61.1% 38.9% +5.0
Michigan St 8-6-0 57.1% 42.9% +1.9
Ohio St 5-4-0 55.6% 44.4% +1.7
Wisconsin 5-4-0 55.6% 44.4% +0.9
Rutgers 8-8-0 50.0% 50.0% -0.2
Indiana 6-6-0 50.0% 50.0% -0.8
Northwestern 6-8-0 42.9% 57.1% +1.7
Penn St 8-11-0 42.1% 57.9% -1.7
Iowa 3-5-0 37.5% 62.5% -1.1