What is every Big 12 Conference team's record against the over/under line as a home underdog since the 2008-2009 season?

Definitions
Team Over Record Over % Under % Total +/-
Texas 22-15-0 59.5% 40.5% +7.3
Texas A&M 26-18-1 59.1% 40.9% +3.3
W Virginia 21-15-1 58.3% 41.7% +5.4
Iowa St 26-24-0 52.0% 48.0% +1.6
Colorado 19-19-0 50.0% 50.0% +0.1
Kansas 1-1-0 50.0% 50.0% -2.5
Cincinnati 9-9-0 50.0% 50.0% +1.1
TX Christian 38-44-1 46.3% 53.7% +1.4
Texas Tech 31-36-2 46.3% 53.7% -2.4
Oklahoma St 24-30-2 44.4% 55.6% -1.4
Nebraska 38-49-2 43.7% 56.3% -0.9
Kansas St 20-26-1 43.5% 56.5% -0.5
Missouri 26-35-0 42.6% 57.4% -1.2
Houston 14-21-1 40.0% 60.0% -2.5
Baylor 6-9-0 40.0% 60.0% -3.6
UCF 22-39-0 36.1% 63.9% -6.3
Oklahoma 14-32-1 30.4% 69.6% -6.1
BYU 4-11-0 26.7% 73.3% -4.0