What is every Big Ten Conference team's record against the over/under line as an underdog since the 2020-2021 season?

Definitions
Team Over Record Over % Under % Total +/-
Illinois 15-9-0 62.5% 37.5% +4.6
Ohio St 28-18-0 60.9% 39.1% +5.4
Michigan 24-18-0 57.1% 42.9% +0.6
Minnesota 46-35-2 56.8% 43.2% +2.1
Wisconsin 26-21-0 55.3% 44.7% +2.7
Nebraska 45-37-1 54.9% 45.1% +1.8
Penn St 38-33-1 53.5% 46.5% +2.0
Indiana 27-24-1 52.9% 47.1% 0.0
Michigan St 24-25-0 49.0% 51.0% +1.8
Iowa 19-20-0 48.7% 51.3% -1.8
Northwestern 28-35-1 44.4% 55.6% +1.2
Maryland 27-34-1 44.3% 55.7% -2.4
Rutgers 21-34-0 38.2% 61.8% -1.3
Purdue 7-13-0 35.0% 65.0% -2.0