What is every Big 12 Conference team's record against the over/under line as a favorite in the 2015 season?

Definitions
Team Over Record Over % Under % Total +/-
Kansas 1-0-0 100.0% 0.0% +30.5
Texas Tech 4-1-0 80.0% 20.0% +18.3
Oklahoma St 5-3-0 62.5% 37.5% +7.2
Kansas St 3-2-0 60.0% 40.0% +3.3
Texas 3-2-0 60.0% 40.0% +5.8
Oklahoma 7-5-0 58.3% 41.7% +2.7
Baylor 6-5-0 54.5% 45.5% -0.7
TX Christian 5-5-0 50.0% 50.0% +0.3
W Virginia 2-8-0 20.0% 80.0% -5.2
Iowa State 0-2-0 0.0% 100.0% -15.2