What is every Big Ten Conference team's record against the over/under line as a home underdog in the 2012 season?

Definitions
Team Over Record Over % Under % Total +/-
Indiana 3-0-0 100.0% 0.0% +22.2
Penn State 1-0-0 100.0% 0.0% +7.0
Purdue 2-1-0 66.7% 33.3% -0.5
Minnesota 2-3-0 40.0% 60.0% -5.3
Illinois 0-2-0 0.0% 100.0% -18.8
Northwestern 0-2-0 0.0% 100.0% -12.0
Iowa 0-1-0 0.0% 100.0% -28.5