What is every Big Ten Conference team's record against the over/under line in post-season bowl games in the 2018 season?

Definitions
Team Over Record Over % Under % Total +/-
Michigan 1-0-0 100.0% 0.0% +5.0
Purdue 1-0-0 100.0% 0.0% +18.5
Iowa 1-0-0 100.0% 0.0% +9.0
Northwestern 1-0-0 100.0% 0.0% +8.0
Penn St 1-0-0 100.0% 0.0% +3.5
Wisconsin 0-1-0 0.0% 100.0% -6.0
Minnesota 0-1-0 0.0% 100.0% -13.0
Ohio St 0-1-0 0.0% 100.0% -4.0
Michigan St 0-1-0 0.0% 100.0% -32.5