What is every Big Ten Conference team's record against the over/under line as a home underdog in the 2015 season?

Definitions
Team Over Record Over % Under % Total +/-
Penn State 1-0-0 100.0% 0.0% +1.0
Michigan 1-0-0 100.0% 0.0% +9.0
Purdue 5-1-0 83.3% 16.7% +16.8
Maryland 2-1-0 66.7% 33.3% +0.3
Minnesota 2-1-0 66.7% 33.3% +2.0
Indiana 2-1-0 66.7% 33.3% +11.2
Northwestern 2-1-0 66.7% 33.3% -4.8
Nebraska 1-2-0 33.3% 66.7% +1.2
Rutgers 0-3-0 0.0% 100.0% -9.8
Illinois 0-3-0 0.0% 100.0% -21.2