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

Definitions
Team Over Record Over % Under % Total +/-
Iowa 1-0-0 100.0% 0.0% +1.5
Ohio St 1-0-0 100.0% 0.0% +48.0
Nebraska 1-0-0 100.0% 0.0% +11.5
Illinois 3-1-0 75.0% 25.0% +11.0
Indiana 3-1-0 75.0% 25.0% -0.4
Purdue 2-1-0 66.7% 33.3% -2.5
Minnesota 2-1-0 66.7% 33.3% +15.0
Maryland 1-1-0 50.0% 50.0% +12.8
Rutgers 3-3-0 50.0% 50.0% -7.0
Northwestern 1-2-0 33.3% 66.7% -3.2
Michigan St 0-3-0 0.0% 100.0% -13.8
Penn St 0-1-0 0.0% 100.0% -15.5