What is every Big Ten Conference team's record against the over/under line as an underdog since the 2018 season?

Definitions
Team Over Record Over % Under % Total +/-
Indiana 10-3-0 76.9% 23.1% +4.2
Michigan 3-1-0 75.0% 25.0% +6.5
Iowa 6-2-0 75.0% 25.0% +1.6
Minnesota 9-5-0 64.3% 35.7% +7.1
Nebraska 7-4-0 63.6% 36.4% +2.8
Purdue 8-5-0 61.5% 38.5% +3.2
Illinois 11-7-0 61.1% 38.9% +5.8
Ohio State 1-1-0 50.0% 50.0% +19.2
Northwestern 9-9-0 50.0% 50.0% -3.5
Maryland 8-8-0 50.0% 50.0% +3.4
Rutgers 9-14-0 39.1% 60.9% -2.2
Wisconsin 2-4-0 33.3% 66.7% +1.3
Penn State 1-2-0 33.3% 66.7% -9.5
Michigan St 1-8-0 11.1% 88.9% -10.4