What is every Big Ten Conference team's record against the over/under line as an underdog since the 2015-2016 season?

Definitions
Team Over Record Over % Under % Total +/-
Michigan St 17-8-0 68.0% 32.0% +4.2
Penn State 43-35-0 55.1% 44.9% +3.3
Iowa 37-33-1 52.9% 47.1% +3.7
Rutgers 53-48-1 52.5% 47.5% +1.6
Michigan 23-21-3 52.3% 47.7% +1.8
Purdue 15-14-0 51.7% 48.3% +1.6
Nebraska 46-43-2 51.7% 48.3% +1.9
Maryland 23-23-1 50.0% 50.0% +0.2
Ohio State 29-30-0 49.1% 50.8% +0.5
Northwestern 33-41-4 44.6% 55.4% -0.7
Minnesota 32-44-1 42.1% 57.9% -1.6
Indiana 24-33-2 42.1% 57.9% -1.5
Illinois 30-49-1 38.0% 62.0% -2.7
Wisconsin 15-41-1 26.8% 73.2% -4.6