What is every Big 12 Conference team's record against the over/under line as a home underdog in the 2011-2012 season?

Definitions
Team Over Record Over % Under % Total +/-
Texas A&M 3-1-1 75.0% 25.0% +7.4
Texas Tech 4-5-0 44.4% 55.6% -6.7
Oklahoma St 2-3-0 40.0% 60.0% -0.4
Iowa St 1-2-0 33.3% 66.7% -2.5
Oklahoma 1-4-0 20.0% 80.0% -1.1
Kansas St 0-2-0 0.0% 100.0% -17.5
Texas 0-1-0 0.0% 100.0% -2.5